20616862

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{433}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 16880738

約数列:

[1, 2, 7, 14, 19, 38, 133, 179, 266, 358, 433, 866, 1253, 2506, 3031, 3401, 6062, 6802, 8227, 16454, 23807, 47614, 57589, 77507, 115178, 155014, 542549, 1085098, 1472633, 2945266, 10308431, 20616862]

約数ペア:

[(1, 20616862), (2, 10308431), (7, 2945266), (14, 1472633), (19, 1085098), (38, 542549), (133, 155014), (179, 115178), (266, 77507), (358, 57589), (433, 47614), (866, 23807), (1253, 16454), (2506, 8227), (3031, 6802), (3401, 6062)]