20431688

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7907}}^1$

素因数の和:7949

約数の個数: 32

約数和(自身を含む): 42703200

約数和(自身を除く): 22271512

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7907, 15814, 31628, 63256, 134419, 150233, 268838, 300466, 537676, 600932, 1075352, 1201864, 2553961, 5107922, 10215844, 20431688]

約数ペア:

[(1, 20431688), (2, 10215844), (4, 5107922), (8, 2553961), (17, 1201864), (19, 1075352), (34, 600932), (38, 537676), (68, 300466), (76, 268838), (136, 150233), (152, 134419), (323, 63256), (646, 31628), (1292, 15814), (2584, 7907)]