21018138238

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{254537}}^1$

素因数の和:254652

約数の個数: 32

約数和(自身を含む): 34637531040

約数和(自身を除く): 13619392802

約数列:

[1, 2, 19, 38, 41, 53, 82, 106, 779, 1007, 1558, 2014, 2173, 4346, 41287, 82574, 254537, 509074, 4836203, 9672406, 10436017, 13490461, 20872034, 26980922, 198284323, 256318759, 396568646, 512637518, 553108901, 1106217802, 10509069119, 21018138238]

約数ペア:

[(1, 21018138238), (2, 10509069119), (19, 1106217802), (38, 553108901), (41, 512637518), (53, 396568646), (82, 256318759), (106, 198284323), (779, 26980922), (1007, 20872034), (1558, 13490461), (2014, 10436017), (2173, 9672406), (4346, 4836203), (41287, 509074), (82574, 254537)]