219657988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{44179}}^1$

素因数の和:44307

約数の個数: 24

約数和(自身を含む): 423067680

約数和(自身を除く): 203409692

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4972, 44179, 88358, 176716, 485969, 971938, 1943876, 4992227, 9984454, 19968908, 54914497, 109828994, 219657988]

約数ペア:

[(1, 219657988), (2, 109828994), (4, 54914497), (11, 19968908), (22, 9984454), (44, 4992227), (113, 1943876), (226, 971938), (452, 485969), (1243, 176716), (2486, 88358), (4972, 44179)]