20821284

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{52579}}^1$

素因数の和:52600

約数の個数: 36

約数和(自身を含む): 57417360

約数和(自身を除く): 36596076

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 52579, 105158, 157737, 210316, 315474, 473211, 578369, 630948, 946422, 1156738, 1735107, 1892844, 2313476, 3470214, 5205321, 6940428, 10410642, 20821284]

約数ペア:

[(1, 20821284), (2, 10410642), (3, 6940428), (4, 5205321), (6, 3470214), (9, 2313476), (11, 1892844), (12, 1735107), (18, 1156738), (22, 946422), (33, 630948), (36, 578369), (44, 473211), (66, 315474), (99, 210316), (132, 157737), (198, 105158), (396, 52579)]