21009621032

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{761}}^1$

素因数の和:1011

約数の個数: 128

約数和(自身を含む): 44439840000

約数和(自身を除く): 23430218968

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 53, 76, 92, 106, 149, 152, 184, 212, 298, 424, 437, 596, 761, 874, 1007, 1192, 1219, 1522, 1748, 2014, 2438, 2831, 3044, 3427, 3496, 4028, 4876, 5662, 6088, 6854, 7897, 8056, 9752, 11324, 13708, 14459, 15794, 17503, 22648, 23161, 27416, 28918, 31588, 35006, 40333, 46322, 57836, 63176, 65113, 70012, 80666, 92644, 113389, 115672, 130226, 140024, 150043, 161332, 181631, 185288, 226778, 260452, 300086, 322664, 332557, 363262, 453556, 520904, 600172, 665114, 726524, 766327, 907112, 927659, 1200344, 1330228, 1453048, 1532654, 1855318, 2154391, 2607947, 2660456, 3065308, 3450989, 3710636, 4308782, 5215894, 6009617, 6130616, 6901978, 7421272, 8617564, 10431788, 12019234, 13803956, 17235128, 17625521, 20863576, 24038468, 27607912, 35251042, 48076936, 49550993, 70502084, 99101986, 114182723, 138221191, 141004168, 198203972, 228365446, 276442382, 396407944, 456730892, 552884764, 913461784, 1105769528, 2626202629, 5252405258, 10504810516, 21009621032]

約数ペア:

[(1, 21009621032), (2, 10504810516), (4, 5252405258), (8, 2626202629), (19, 1105769528), (23, 913461784), (38, 552884764), (46, 456730892), (53, 396407944), (76, 276442382), (92, 228365446), (106, 198203972), (149, 141004168), (152, 138221191), (184, 114182723), (212, 99101986), (298, 70502084), (424, 49550993), (437, 48076936), (596, 35251042), (761, 27607912), (874, 24038468), (1007, 20863576), (1192, 17625521), (1219, 17235128), (1522, 13803956), (1748, 12019234), (2014, 10431788), (2438, 8617564), (2831, 7421272), (3044, 6901978), (3427, 6130616), (3496, 6009617), (4028, 5215894), (4876, 4308782), (5662, 3710636), (6088, 3450989), (6854, 3065308), (7897, 2660456), (8056, 2607947), (9752, 2154391), (11324, 1855318), (13708, 1532654), (14459, 1453048), (15794, 1330228), (17503, 1200344), (22648, 927659), (23161, 907112), (27416, 766327), (28918, 726524), (31588, 665114), (35006, 600172), (40333, 520904), (46322, 453556), (57836, 363262), (63176, 332557), (65113, 322664), (70012, 300086), (80666, 260452), (92644, 226778), (113389, 185288), (115672, 181631), (130226, 161332), (140024, 150043)]