21710416

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:109

約数の個数: 120

約数和(自身を含む): 55186944

約数和(自身を除く): 33476528

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 37, 52, 56, 62, 74, 91, 104, 112, 124, 148, 169, 182, 208, 217, 248, 259, 296, 338, 364, 403, 434, 481, 496, 518, 592, 676, 728, 806, 868, 962, 1036, 1147, 1183, 1352, 1456, 1612, 1736, 1924, 2072, 2294, 2366, 2704, 2821, 3224, 3367, 3472, 3848, 4144, 4588, 4732, 5239, 5642, 6253, 6448, 6734, 7696, 8029, 9176, 9464, 10478, 11284, 12506, 13468, 14911, 16058, 18352, 18928, 20956, 22568, 25012, 26936, 29822, 32116, 36673, 41912, 43771, 45136, 50024, 53872, 59644, 64232, 73346, 83824, 87542, 100048, 104377, 119288, 128464, 146692, 175084, 193843, 208754, 238576, 293384, 350168, 387686, 417508, 586768, 700336, 775372, 835016, 1356901, 1550744, 1670032, 2713802, 3101488, 5427604, 10855208, 21710416]

約数ペア:

[(1, 21710416), (2, 10855208), (4, 5427604), (7, 3101488), (8, 2713802), (13, 1670032), (14, 1550744), (16, 1356901), (26, 835016), (28, 775372), (31, 700336), (37, 586768), (52, 417508), (56, 387686), (62, 350168), (74, 293384), (91, 238576), (104, 208754), (112, 193843), (124, 175084), (148, 146692), (169, 128464), (182, 119288), (208, 104377), (217, 100048), (248, 87542), (259, 83824), (296, 73346), (338, 64232), (364, 59644), (403, 53872), (434, 50024), (481, 45136), (496, 43771), (518, 41912), (592, 36673), (676, 32116), (728, 29822), (806, 26936), (868, 25012), (962, 22568), (1036, 20956), (1147, 18928), (1183, 18352), (1352, 16058), (1456, 14911), (1612, 13468), (1736, 12506), (1924, 11284), (2072, 10478), (2294, 9464), (2366, 9176), (2704, 8029), (2821, 7696), (3224, 6734), (3367, 6448), (3472, 6253), (3848, 5642), (4144, 5239), (4588, 4732)]