20707518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1033}}^1$

素因数の和:1308

約数の個数: 32

約数和(自身を含む): 44817696

約数和(自身を除く): 24110178

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257, 514, 771, 1033, 1542, 2066, 3099, 3341, 6198, 6682, 10023, 13429, 20046, 26858, 40287, 80574, 265481, 530962, 796443, 1592886, 3451253, 6902506, 10353759, 20707518]

約数ペア:

[(1, 20707518), (2, 10353759), (3, 6902506), (6, 3451253), (13, 1592886), (26, 796443), (39, 530962), (78, 265481), (257, 80574), (514, 40287), (771, 26858), (1033, 20046), (1542, 13429), (2066, 10023), (3099, 6682), (3341, 6198)]