21349250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6569}}^1$

素因数の和:6599

約数の個数: 32

約数和(自身を含む): 43046640

約数和(自身を除く): 21697390

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 6569, 13138, 32845, 65690, 85397, 164225, 170794, 328450, 426985, 821125, 853970, 1642250, 2134925, 4269850, 10674625, 21349250]

約数ペア:

[(1, 21349250), (2, 10674625), (5, 4269850), (10, 2134925), (13, 1642250), (25, 853970), (26, 821125), (50, 426985), (65, 328450), (125, 170794), (130, 164225), (250, 85397), (325, 65690), (650, 32845), (1625, 13138), (3250, 6569)]