21875035

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 32643072

約数和(自身を除く): 10768037

約数列:

[1, 5, 7, 13, 35, 65, 91, 131, 367, 455, 655, 917, 1703, 1835, 2569, 4585, 4771, 8515, 11921, 12845, 23855, 33397, 48077, 59605, 166985, 240385, 336539, 625001, 1682695, 3125005, 4375007, 21875035]

約数ペア:

[(1, 21875035), (5, 4375007), (7, 3125005), (13, 1682695), (35, 625001), (65, 336539), (91, 240385), (131, 166985), (367, 59605), (455, 48077), (655, 33397), (917, 23855), (1703, 12845), (1835, 11921), (2569, 8515), (4585, 4771)]