21853845

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37357}}^1$

素因数の和:37381

約数の個数: 24

約数和(自身を含む): 40794936

約数和(自身を除く): 18941091

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 37357, 112071, 186785, 336213, 485641, 560355, 1456923, 1681065, 2428205, 4370769, 7284615, 21853845]

約数ペア:

[(1, 21853845), (3, 7284615), (5, 4370769), (9, 2428205), (13, 1681065), (15, 1456923), (39, 560355), (45, 485641), (65, 336213), (117, 186785), (195, 112071), (585, 37357)]