21457162078

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{739}}^1\times {\mathrm{119981}}^1$

素因数の和:120744

約数の個数: 24

約数和(自身を含む): 35425885320

約数和(自身を除く): 13968723242

約数列:

[1, 2, 11, 22, 121, 242, 739, 1478, 8129, 16258, 89419, 119981, 178838, 239962, 1319791, 2639582, 14517701, 29035402, 88665959, 177331918, 975325549, 1950651098, 10728581039, 21457162078]

約数ペア:

[(1, 21457162078), (2, 10728581039), (11, 1950651098), (22, 975325549), (121, 177331918), (242, 88665959), (739, 29035402), (1478, 14517701), (8129, 2639582), (16258, 1319791), (89419, 239962), (119981, 178838)]