21042072

素因数分解:

$2^3\times 3^3\times {\mathrm{61}}^1\times {\mathrm{1597}}^1$

素因数の和:1673

約数の個数: 64

約数和(自身を含む): 59445600

約数和(自身を除く): 38403528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 61, 72, 108, 122, 183, 216, 244, 366, 488, 549, 732, 1098, 1464, 1597, 1647, 2196, 3194, 3294, 4392, 4791, 6388, 6588, 9582, 12776, 13176, 14373, 19164, 28746, 38328, 43119, 57492, 86238, 97417, 114984, 172476, 194834, 292251, 344952, 389668, 584502, 779336, 876753, 1169004, 1753506, 2338008, 2630259, 3507012, 5260518, 7014024, 10521036, 21042072]

約数ペア:

[(1, 21042072), (2, 10521036), (3, 7014024), (4, 5260518), (6, 3507012), (8, 2630259), (9, 2338008), (12, 1753506), (18, 1169004), (24, 876753), (27, 779336), (36, 584502), (54, 389668), (61, 344952), (72, 292251), (108, 194834), (122, 172476), (183, 114984), (216, 97417), (244, 86238), (366, 57492), (488, 43119), (549, 38328), (732, 28746), (1098, 19164), (1464, 14373), (1597, 13176), (1647, 12776), (2196, 9582), (3194, 6588), (3294, 6388), (4392, 4791)]