19911368

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 18311992

約数列:

[1, 2, 4, 8, 83, 157, 166, 191, 314, 332, 382, 628, 664, 764, 1256, 1528, 13031, 15853, 26062, 29987, 31706, 52124, 59974, 63412, 104248, 119948, 126824, 239896, 2488921, 4977842, 9955684, 19911368]

約数ペア:

[(1, 19911368), (2, 9955684), (4, 4977842), (8, 2488921), (83, 239896), (157, 126824), (166, 119948), (191, 104248), (314, 63412), (332, 59974), (382, 52124), (628, 31706), (664, 29987), (764, 26062), (1256, 15853), (1528, 13031)]