21082088

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{43201}}^1$

素因数の和:43268

約数の個数: 16

約数和(自身を含む): 40177860

約数和(自身を除く): 19095772

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 43201, 86402, 172804, 345608, 2635261, 5270522, 10541044, 21082088]

約数ペア:

[(1, 21082088), (2, 10541044), (4, 5270522), (8, 2635261), (61, 345608), (122, 172804), (244, 86402), (488, 43201)]