21906378

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{523}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 51498720

約数和(自身を除く): 29592342

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 179, 234, 358, 523, 537, 1046, 1074, 1569, 1611, 2327, 3138, 3222, 4654, 4707, 6799, 6981, 9414, 13598, 13962, 20397, 20943, 40794, 41886, 61191, 93617, 122382, 187234, 280851, 561702, 842553, 1217021, 1685106, 2434042, 3651063, 7302126, 10953189, 21906378]

約数ペア:

[(1, 21906378), (2, 10953189), (3, 7302126), (6, 3651063), (9, 2434042), (13, 1685106), (18, 1217021), (26, 842553), (39, 561702), (78, 280851), (117, 187234), (179, 122382), (234, 93617), (358, 61191), (523, 41886), (537, 40794), (1046, 20943), (1074, 20397), (1569, 13962), (1611, 13598), (2327, 9414), (3138, 6981), (3222, 6799), (4654, 4707)]