21629080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49157}}^1$

素因数の和:49179

約数の個数: 32

約数和(自身を含む): 53090640

約数和(自身を除く): 31461560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49157, 98314, 196628, 245785, 393256, 491570, 540727, 983140, 1081454, 1966280, 2162908, 2703635, 4325816, 5407270, 10814540, 21629080]

約数ペア:

[(1, 21629080), (2, 10814540), (4, 5407270), (5, 4325816), (8, 2703635), (10, 2162908), (11, 1966280), (20, 1081454), (22, 983140), (40, 540727), (44, 491570), (55, 393256), (88, 245785), (110, 196628), (220, 98314), (440, 49157)]