20671108

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{563}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 37048032

約数和(自身を除く): 16376924

約数列:

[1, 2, 4, 67, 134, 137, 268, 274, 548, 563, 1126, 2252, 9179, 18358, 36716, 37721, 75442, 77131, 150884, 154262, 308524, 5167777, 10335554, 20671108]

約数ペア:

[(1, 20671108), (2, 10335554), (4, 5167777), (67, 308524), (134, 154262), (137, 150884), (268, 77131), (274, 75442), (548, 37721), (563, 36716), (1126, 18358), (2252, 9179)]