21415355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{577}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 27771744

約数和(自身を除く): 6356389

約数列:

[1, 5, 13, 65, 571, 577, 2855, 2885, 7423, 7501, 37115, 37505, 329467, 1647335, 4283071, 21415355]

約数ペア:

[(1, 21415355), (5, 4283071), (13, 1647335), (65, 329467), (571, 37505), (577, 37115), (2855, 7501), (2885, 7423)]