20217688

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{409}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 39261600

約数和(自身を除く): 19043912

約数列:

[1, 2, 4, 8, 37, 74, 148, 167, 296, 334, 409, 668, 818, 1336, 1636, 3272, 6179, 12358, 15133, 24716, 30266, 49432, 60532, 68303, 121064, 136606, 273212, 546424, 2527211, 5054422, 10108844, 20217688]

約数ペア:

[(1, 20217688), (2, 10108844), (4, 5054422), (8, 2527211), (37, 546424), (74, 273212), (148, 136606), (167, 121064), (296, 68303), (334, 60532), (409, 49432), (668, 30266), (818, 24716), (1336, 15133), (1636, 12358), (3272, 6179)]