21175180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3541}}^1$

素因数の和:3586

約数の個数: 48

約数和(自身を含む): 49984704

約数和(自身を除く): 28809524

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3541, 5980, 7082, 14164, 17705, 35410, 46033, 70820, 81443, 92066, 162886, 184132, 230165, 325772, 407215, 460330, 814430, 920660, 1058759, 1628860, 2117518, 4235036, 5293795, 10587590, 21175180]

約数ペア:

[(1, 21175180), (2, 10587590), (4, 5293795), (5, 4235036), (10, 2117518), (13, 1628860), (20, 1058759), (23, 920660), (26, 814430), (46, 460330), (52, 407215), (65, 325772), (92, 230165), (115, 184132), (130, 162886), (230, 92066), (260, 81443), (299, 70820), (460, 46033), (598, 35410), (1196, 17705), (1495, 14164), (2990, 7082), (3541, 5980)]