21105964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4483}}^1$

素因数の和:4605

約数の個数: 24

約数和(自身を含む): 40678848

約数和(自身を除く): 19572884

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4483, 4708, 8966, 17932, 49313, 98626, 197252, 479681, 959362, 1918724, 5276491, 10552982, 21105964]

約数ペア:

[(1, 21105964), (2, 10552982), (4, 5276491), (11, 1918724), (22, 959362), (44, 479681), (107, 197252), (214, 98626), (428, 49313), (1177, 17932), (2354, 8966), (4483, 4708)]