291207758038

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{4969}}^1\times {\mathrm{210809}}^1$

素因数の和:215919

約数の個数: 16

約数和(自身を含む): 440044794000

約数和(自身を除く): 148837035962

約数列:

[1, 2, 139, 278, 4969, 9938, 210809, 421618, 690691, 1381382, 29302451, 58604902, 1047509921, 2095019842, 145603879019, 291207758038]

約数ペア:

[(1, 291207758038), (2, 145603879019), (139, 2095019842), (278, 1047509921), (4969, 58604902), (9938, 29302451), (210809, 1381382), (421618, 690691)]