21580290

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:584

約数の個数: 64

約数和(自身を含む): 57957120

約数和(自身を除く): 36376830

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 257, 270, 311, 514, 622, 771, 933, 1285, 1542, 1555, 1866, 2313, 2570, 2799, 3110, 3855, 4626, 4665, 5598, 6939, 7710, 8397, 9330, 11565, 13878, 13995, 16794, 23130, 27990, 34695, 41985, 69390, 79927, 83970, 159854, 239781, 399635, 479562, 719343, 799270, 1198905, 1438686, 2158029, 2397810, 3596715, 4316058, 7193430, 10790145, 21580290]

約数ペア:

[(1, 21580290), (2, 10790145), (3, 7193430), (5, 4316058), (6, 3596715), (9, 2397810), (10, 2158029), (15, 1438686), (18, 1198905), (27, 799270), (30, 719343), (45, 479562), (54, 399635), (90, 239781), (135, 159854), (257, 83970), (270, 79927), (311, 69390), (514, 41985), (622, 34695), (771, 27990), (933, 23130), (1285, 16794), (1542, 13995), (1555, 13878), (1866, 11565), (2313, 9330), (2570, 8397), (2799, 7710), (3110, 6939), (3855, 5598), (4626, 4665)]