21660964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5867}}^1$

素因数の和:5955

約数の個数: 24

約数和(自身を含む): 41404608

約数和(自身を除く): 19743644

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5867, 11734, 23468, 76271, 152542, 305084, 416557, 833114, 1666228, 5415241, 10830482, 21660964]

約数ペア:

[(1, 21660964), (2, 10830482), (4, 5415241), (13, 1666228), (26, 833114), (52, 416557), (71, 305084), (142, 152542), (284, 76271), (923, 23468), (1846, 11734), (3692, 5867)]