19205716

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^2$

素因数の和:220

約数の個数: 36

約数和(自身を含む): 36762012

約数和(自身を除く): 17556296

約数列:

[1, 2, 4, 17, 34, 53, 68, 73, 106, 146, 212, 292, 901, 1241, 1802, 2482, 3604, 3869, 4964, 5329, 7738, 10658, 15476, 21316, 65773, 90593, 131546, 181186, 263092, 282437, 362372, 564874, 1129748, 4801429, 9602858, 19205716]

約数ペア:

[(1, 19205716), (2, 9602858), (4, 4801429), (17, 1129748), (34, 564874), (53, 362372), (68, 282437), (73, 263092), (106, 181186), (146, 131546), (212, 90593), (292, 65773), (901, 21316), (1241, 15476), (1802, 10658), (2482, 7738), (3604, 5329), (3869, 4964)]