20218268

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2069}}^1$

素因数の和:2429

約数の個数: 24

約数和(自身を含む): 40572000

約数和(自身を除く): 20353732

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 1396, 2069, 2443, 4138, 4886, 8276, 9772, 14483, 28966, 57932, 722081, 1444162, 2888324, 5054567, 10109134, 20218268]

約数ペア:

[(1, 20218268), (2, 10109134), (4, 5054567), (7, 2888324), (14, 1444162), (28, 722081), (349, 57932), (698, 28966), (1396, 14483), (2069, 9772), (2443, 8276), (4138, 4886)]