18994878

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1670

約数の個数: 64

約数和(自身を含む): 49827840

約数和(自身を除く): 30832962

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 31, 42, 54, 62, 63, 93, 126, 186, 189, 217, 279, 378, 434, 558, 651, 837, 1302, 1621, 1674, 1953, 3242, 3906, 4863, 5859, 9726, 11347, 11718, 14589, 22694, 29178, 34041, 43767, 50251, 68082, 87534, 100502, 102123, 150753, 204246, 301506, 306369, 351757, 452259, 612738, 703514, 904518, 1055271, 1356777, 2110542, 2713554, 3165813, 6331626, 9497439, 18994878]

約数ペア:

[(1, 18994878), (2, 9497439), (3, 6331626), (6, 3165813), (7, 2713554), (9, 2110542), (14, 1356777), (18, 1055271), (21, 904518), (27, 703514), (31, 612738), (42, 452259), (54, 351757), (62, 306369), (63, 301506), (93, 204246), (126, 150753), (186, 102123), (189, 100502), (217, 87534), (279, 68082), (378, 50251), (434, 43767), (558, 34041), (651, 29178), (837, 22694), (1302, 14589), (1621, 11718), (1674, 11347), (1953, 9726), (3242, 5859), (3906, 4863)]