21453770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{727}}^1$

素因数の和:974

約数の個数: 32

約数和(自身を含む): 41827968

約数和(自身を除く): 20374198

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 227, 454, 727, 1135, 1454, 2270, 2951, 3635, 5902, 7270, 9451, 14755, 18902, 29510, 47255, 94510, 165029, 330058, 825145, 1650290, 2145377, 4290754, 10726885, 21453770]

約数ペア:

[(1, 21453770), (2, 10726885), (5, 4290754), (10, 2145377), (13, 1650290), (26, 825145), (65, 330058), (130, 165029), (227, 94510), (454, 47255), (727, 29510), (1135, 18902), (1454, 14755), (2270, 9451), (2951, 7270), (3635, 5902)]