13398820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21611}}^1$

素因数の和:21651

約数の個数: 24

約数和(自身を含む): 29046528

約数和(自身を除く): 15647708

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21611, 43222, 86444, 108055, 216110, 432220, 669941, 1339882, 2679764, 3349705, 6699410, 13398820]

約数ペア:

[(1, 13398820), (2, 6699410), (4, 3349705), (5, 2679764), (10, 1339882), (20, 669941), (31, 432220), (62, 216110), (124, 108055), (155, 86444), (310, 43222), (620, 21611)]