21705330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 33452430

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 83, 115, 138, 166, 230, 249, 345, 379, 415, 498, 690, 758, 830, 1137, 1245, 1895, 1909, 2274, 2490, 3790, 3818, 5685, 5727, 8717, 9545, 11370, 11454, 17434, 19090, 26151, 28635, 31457, 43585, 52302, 57270, 62914, 87170, 94371, 130755, 157285, 188742, 261510, 314570, 471855, 723511, 943710, 1447022, 2170533, 3617555, 4341066, 7235110, 10852665, 21705330]

約数ペア:

[(1, 21705330), (2, 10852665), (3, 7235110), (5, 4341066), (6, 3617555), (10, 2170533), (15, 1447022), (23, 943710), (30, 723511), (46, 471855), (69, 314570), (83, 261510), (115, 188742), (138, 157285), (166, 130755), (230, 94371), (249, 87170), (345, 62914), (379, 57270), (415, 52302), (498, 43585), (690, 31457), (758, 28635), (830, 26151), (1137, 19090), (1245, 17434), (1895, 11454), (1909, 11370), (2274, 9545), (2490, 8717), (3790, 5727), (3818, 5685)]