21198224

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{677}}^1$

素因数の和:807

約数の個数: 40

約数和(自身を含む): 43717440

約数和(自身を除く): 22519216

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 152, 206, 304, 412, 677, 824, 1354, 1648, 1957, 2708, 3914, 5416, 7828, 10832, 12863, 15656, 25726, 31312, 51452, 69731, 102904, 139462, 205808, 278924, 557848, 1115696, 1324889, 2649778, 5299556, 10599112, 21198224]

約数ペア:

[(1, 21198224), (2, 10599112), (4, 5299556), (8, 2649778), (16, 1324889), (19, 1115696), (38, 557848), (76, 278924), (103, 205808), (152, 139462), (206, 102904), (304, 69731), (412, 51452), (677, 31312), (824, 25726), (1354, 15656), (1648, 12863), (1957, 10832), (2708, 7828), (3914, 5416)]