20739838

素因数分解:

$2^1\times 7^5\times {\mathrm{617}}^1$

素因数の和:654

約数の個数: 24

約数和(自身を含む): 36353232

約数和(自身を除く): 15613394

約数列:

[1, 2, 7, 14, 49, 98, 343, 617, 686, 1234, 2401, 4319, 4802, 8638, 16807, 30233, 33614, 60466, 211631, 423262, 1481417, 2962834, 10369919, 20739838]

約数ペア:

[(1, 20739838), (2, 10369919), (7, 2962834), (14, 1481417), (49, 423262), (98, 211631), (343, 60466), (617, 33614), (686, 30233), (1234, 16807), (2401, 8638), (4319, 4802)]