21060116

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{677}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 46472832

約数和(自身を除く): 25412716

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 101, 154, 202, 308, 404, 677, 707, 1111, 1354, 1414, 2222, 2708, 2828, 4444, 4739, 7447, 7777, 9478, 14894, 15554, 18956, 29788, 31108, 52129, 68377, 104258, 136754, 208516, 273508, 478639, 752147, 957278, 1504294, 1914556, 3008588, 5265029, 10530058, 21060116]

約数ペア:

[(1, 21060116), (2, 10530058), (4, 5265029), (7, 3008588), (11, 1914556), (14, 1504294), (22, 957278), (28, 752147), (44, 478639), (77, 273508), (101, 208516), (154, 136754), (202, 104258), (308, 68377), (404, 52129), (677, 31108), (707, 29788), (1111, 18956), (1354, 15554), (1414, 14894), (2222, 9478), (2708, 7777), (2828, 7447), (4444, 4739)]