21535490

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{227}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 18355390

約数列:

[1, 2, 5, 10, 53, 106, 179, 227, 265, 358, 454, 530, 895, 1135, 1790, 2270, 9487, 12031, 18974, 24062, 40633, 47435, 60155, 81266, 94870, 120310, 203165, 406330, 2153549, 4307098, 10767745, 21535490]

約数ペア:

[(1, 21535490), (2, 10767745), (5, 4307098), (10, 2153549), (53, 406330), (106, 203165), (179, 120310), (227, 94870), (265, 81266), (358, 60155), (454, 47435), (530, 40633), (895, 24062), (1135, 18974), (1790, 12031), (2270, 9487)]