87236639

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{19813}}^1$

素因数の和:19874

約数の個数: 16

約数和(自身を含む): 108422208

約数和(自身を除く): 21185569

約数列:

[1, 7, 17, 37, 119, 259, 629, 4403, 19813, 138691, 336821, 733081, 2357747, 5131567, 12462377, 87236639]

約数ペア:

[(1, 87236639), (7, 12462377), (17, 5131567), (37, 2357747), (119, 733081), (259, 336821), (629, 138691), (4403, 19813)]