668521898

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1\times {\mathrm{811}}^1$

素因数の和:1334

約数の個数: 32

約数和(自身を含む): 1110231360

約数和(自身を除く): 441709462

約数列:

[1, 2, 11, 22, 89, 178, 421, 811, 842, 979, 1622, 1958, 4631, 8921, 9262, 17842, 37469, 72179, 74938, 144358, 341431, 412159, 682862, 793969, 824318, 1587938, 3755741, 7511482, 30387359, 60774718, 334260949, 668521898]

約数ペア:

[(1, 668521898), (2, 334260949), (11, 60774718), (22, 30387359), (89, 7511482), (178, 3755741), (421, 1587938), (811, 824318), (842, 793969), (979, 682862), (1622, 412159), (1958, 341431), (4631, 144358), (8921, 74938), (9262, 72179), (17842, 37469)]