21865407890

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{1597181}}^1$

素因数の和:1597262

約数の個数: 24

約数和(自身を含む): 40450231332

約数和(自身を除く): 18584823442

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 1369, 2738, 6845, 13690, 1597181, 3194362, 7985905, 15971810, 59095697, 118191394, 295478485, 590956970, 2186540789, 4373081578, 10932703945, 21865407890]

約数ペア:

[(1, 21865407890), (2, 10932703945), (5, 4373081578), (10, 2186540789), (37, 590956970), (74, 295478485), (185, 118191394), (370, 59095697), (1369, 15971810), (2738, 7985905), (6845, 3194362), (13690, 1597181)]