21308092

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{4937}}^1$

素因数の和:5037

約数の個数: 24

約数和(自身を含む): 40649616

約数和(自身を除く): 19341524

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 332, 1079, 2158, 4316, 4937, 9874, 19748, 64181, 128362, 256724, 409771, 819542, 1639084, 5327023, 10654046, 21308092]

約数ペア:

[(1, 21308092), (2, 10654046), (4, 5327023), (13, 1639084), (26, 819542), (52, 409771), (83, 256724), (166, 128362), (332, 64181), (1079, 19748), (2158, 9874), (4316, 4937)]