21035518

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{11831}}^1$

素因数の和:11967

約数の個数: 16

約数和(自身を含む): 36347904

約数和(自身を除く): 15312386

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 11831, 23662, 82817, 165634, 1502537, 3005074, 10517759, 21035518]

約数ペア:

[(1, 21035518), (2, 10517759), (7, 3005074), (14, 1502537), (127, 165634), (254, 82817), (889, 23662), (1778, 11831)]