21000751956

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^2\times {\mathrm{149}}^1\times {\mathrm{2467}}^1$

素因数の和:2675

約数の個数: 144

約数和(自身を含む): 57321768000

約数和(自身を除く): 36321016044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 149, 207, 276, 298, 414, 447, 529, 596, 621, 828, 894, 1058, 1242, 1341, 1587, 1788, 2116, 2467, 2484, 2682, 3174, 3427, 4023, 4761, 4934, 5364, 6348, 6854, 7401, 8046, 9522, 9868, 10281, 13708, 14283, 14802, 16092, 19044, 20562, 22203, 28566, 29604, 30843, 41124, 44406, 56741, 57132, 61686, 66609, 78821, 88812, 92529, 113482, 123372, 133218, 157642, 170223, 185058, 226964, 236463, 266436, 315284, 340446, 367583, 370116, 472926, 510669, 680892, 709389, 735166, 945852, 1021338, 1102749, 1305043, 1418778, 1470332, 1532007, 2042676, 2128167, 2205498, 2610086, 2837556, 3064014, 3308247, 3915129, 4256334, 4410996, 5220172, 6128028, 6616494, 7830258, 8454409, 8512668, 9924741, 11745387, 13232988, 15660516, 16908818, 19849482, 23490774, 25363227, 33817636, 35236161, 39698964, 46981548, 50726454, 70472322, 76089681, 101452908, 140944644, 152179362, 194451407, 228269043, 304358724, 388902814, 456538086, 583354221, 777805628, 913076172, 1166708442, 1750062663, 2333416884, 3500125326, 5250187989, 7000250652, 10500375978, 21000751956]

約数ペア:

[(1, 21000751956), (2, 10500375978), (3, 7000250652), (4, 5250187989), (6, 3500125326), (9, 2333416884), (12, 1750062663), (18, 1166708442), (23, 913076172), (27, 777805628), (36, 583354221), (46, 456538086), (54, 388902814), (69, 304358724), (92, 228269043), (108, 194451407), (138, 152179362), (149, 140944644), (207, 101452908), (276, 76089681), (298, 70472322), (414, 50726454), (447, 46981548), (529, 39698964), (596, 35236161), (621, 33817636), (828, 25363227), (894, 23490774), (1058, 19849482), (1242, 16908818), (1341, 15660516), (1587, 13232988), (1788, 11745387), (2116, 9924741), (2467, 8512668), (2484, 8454409), (2682, 7830258), (3174, 6616494), (3427, 6128028), (4023, 5220172), (4761, 4410996), (4934, 4256334), (5364, 3915129), (6348, 3308247), (6854, 3064014), (7401, 2837556), (8046, 2610086), (9522, 2205498), (9868, 2128167), (10281, 2042676), (13708, 1532007), (14283, 1470332), (14802, 1418778), (16092, 1305043), (19044, 1102749), (20562, 1021338), (22203, 945852), (28566, 735166), (29604, 709389), (30843, 680892), (41124, 510669), (44406, 472926), (56741, 370116), (57132, 367583), (61686, 340446), (66609, 315284), (78821, 266436), (88812, 236463), (92529, 226964), (113482, 185058), (123372, 170223), (133218, 157642)]