20921457584

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{22162561}}^1$

素因数の和:22162628

約数の個数: 20

約数和(自身を含む): 41222365320

約数和(自身を除く): 20300907736

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 22162561, 44325122, 88650244, 177300488, 354600976, 1307591099, 2615182198, 5230364396, 10460728792, 20921457584]

約数ペア:

[(1, 20921457584), (2, 10460728792), (4, 5230364396), (8, 2615182198), (16, 1307591099), (59, 354600976), (118, 177300488), (236, 88650244), (472, 44325122), (944, 22162561)]