21671492

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{809}}^1$

素因数の和:1031

約数の個数: 24

約数和(自身を含む): 39213720

約数和(自身を除く): 17542228

約数列:

[1, 2, 4, 37, 74, 148, 181, 362, 724, 809, 1618, 3236, 6697, 13394, 26788, 29933, 59866, 119732, 146429, 292858, 585716, 5417873, 10835746, 21671492]

約数ペア:

[(1, 21671492), (2, 10835746), (4, 5417873), (37, 585716), (74, 292858), (148, 146429), (181, 119732), (362, 59866), (724, 29933), (809, 26788), (1618, 13394), (3236, 6697)]