21697140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6823}}^1$

素因数の和:6888

約数の個数: 48

約数和(自身を含む): 61907328

約数和(自身を除く): 40210188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6823, 13646, 20469, 27292, 34115, 40938, 68230, 81876, 102345, 136460, 204690, 361619, 409380, 723238, 1084857, 1446476, 1808095, 2169714, 3616190, 4339428, 5424285, 7232380, 10848570, 21697140]

約数ペア:

[(1, 21697140), (2, 10848570), (3, 7232380), (4, 5424285), (5, 4339428), (6, 3616190), (10, 2169714), (12, 1808095), (15, 1446476), (20, 1084857), (30, 723238), (53, 409380), (60, 361619), (106, 204690), (159, 136460), (212, 102345), (265, 81876), (318, 68230), (530, 40938), (636, 34115), (795, 27292), (1060, 20469), (1590, 13646), (3180, 6823)]