21987960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1889}}^1$

素因数の和:2000

約数の個数: 64

約数和(自身を含む): 66679200

約数和(自身を除く): 44691240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1889, 1940, 2328, 2910, 3778, 3880, 5667, 5820, 7556, 9445, 11334, 11640, 15112, 18890, 22668, 28335, 37780, 45336, 56670, 75560, 113340, 183233, 226680, 366466, 549699, 732932, 916165, 1099398, 1465864, 1832330, 2198796, 2748495, 3664660, 4397592, 5496990, 7329320, 10993980, 21987960]

約数ペア:

[(1, 21987960), (2, 10993980), (3, 7329320), (4, 5496990), (5, 4397592), (6, 3664660), (8, 2748495), (10, 2198796), (12, 1832330), (15, 1465864), (20, 1099398), (24, 916165), (30, 732932), (40, 549699), (60, 366466), (97, 226680), (120, 183233), (194, 113340), (291, 75560), (388, 56670), (485, 45336), (582, 37780), (776, 28335), (970, 22668), (1164, 18890), (1455, 15112), (1889, 11640), (1940, 11334), (2328, 9445), (2910, 7556), (3778, 5820), (3880, 5667)]