21929680

素因数分解:

$2^4\times 5^1\times {\mathrm{274121}}^1$

素因数の和:274134

約数の個数: 20

約数和(自身を含む): 50986692

約数和(自身を除く): 29057012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 274121, 548242, 1096484, 1370605, 2192968, 2741210, 4385936, 5482420, 10964840, 21929680]

約数ペア:

[(1, 21929680), (2, 10964840), (4, 5482420), (5, 4385936), (8, 2741210), (10, 2192968), (16, 1370605), (20, 1096484), (40, 548242), (80, 274121)]