20712715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3637}}^1$

素因数の和:3726

約数の個数: 16

約数和(自身を含む): 26717472

約数和(自身を除く): 6004757

約数列:

[1, 5, 17, 67, 85, 335, 1139, 3637, 5695, 18185, 61829, 243679, 309145, 1218395, 4142543, 20712715]

約数ペア:

[(1, 20712715), (5, 4142543), (17, 1218395), (67, 309145), (85, 243679), (335, 61829), (1139, 18185), (3637, 5695)]