21019154398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{171007}}^1$

素因数の和:171208

約数の個数: 32

約数和(自身を含む): 35558719488

約数和(自身を除く): 14539565090

約数列:

[1, 2, 11, 22, 37, 74, 151, 302, 407, 814, 1661, 3322, 5587, 11174, 61457, 122914, 171007, 342014, 1881077, 3762154, 6327259, 12654518, 25822057, 51644114, 69599849, 139199698, 284042627, 568085254, 955416109, 1910832218, 10509577199, 21019154398]

約数ペア:

[(1, 21019154398), (2, 10509577199), (11, 1910832218), (22, 955416109), (37, 568085254), (74, 284042627), (151, 139199698), (302, 69599849), (407, 51644114), (814, 25822057), (1661, 12654518), (3322, 6327259), (5587, 3762154), (11174, 1881077), (61457, 342014), (122914, 171007)]