21440370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{193}}^1$

素因数の和:256

約数の個数: 96

約数和(自身を含む): 61794432

約数和(自身を除く): 40354062

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 193, 210, 230, 322, 345, 386, 483, 529, 579, 690, 805, 965, 966, 1058, 1158, 1351, 1587, 1610, 1930, 2415, 2645, 2702, 2895, 3174, 3703, 4053, 4439, 4830, 5290, 5790, 6755, 7406, 7935, 8106, 8878, 11109, 13317, 13510, 15870, 18515, 20265, 22195, 22218, 26634, 31073, 37030, 40530, 44390, 55545, 62146, 66585, 93219, 102097, 111090, 133170, 155365, 186438, 204194, 306291, 310730, 466095, 510485, 612582, 714679, 932190, 1020970, 1429358, 1531455, 2144037, 3062910, 3573395, 4288074, 7146790, 10720185, 21440370]

約数ペア:

[(1, 21440370), (2, 10720185), (3, 7146790), (5, 4288074), (6, 3573395), (7, 3062910), (10, 2144037), (14, 1531455), (15, 1429358), (21, 1020970), (23, 932190), (30, 714679), (35, 612582), (42, 510485), (46, 466095), (69, 310730), (70, 306291), (105, 204194), (115, 186438), (138, 155365), (161, 133170), (193, 111090), (210, 102097), (230, 93219), (322, 66585), (345, 62146), (386, 55545), (483, 44390), (529, 40530), (579, 37030), (690, 31073), (805, 26634), (965, 22218), (966, 22195), (1058, 20265), (1158, 18515), (1351, 15870), (1587, 13510), (1610, 13317), (1930, 11109), (2415, 8878), (2645, 8106), (2702, 7935), (2895, 7406), (3174, 6755), (3703, 5790), (4053, 5290), (4439, 4830)]