20561942

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{619}}^1\times {\mathrm{977}}^1$

素因数の和:1615

約数の個数: 16

約数和(自身を含む): 32743440

約数和(自身を除く): 12181498

約数列:

[1, 2, 17, 34, 619, 977, 1238, 1954, 10523, 16609, 21046, 33218, 604763, 1209526, 10280971, 20561942]

約数ペア:

[(1, 20561942), (2, 10280971), (17, 1209526), (34, 604763), (619, 33218), (977, 21046), (1238, 16609), (1954, 10523)]