21947510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9931}}^1$

素因数の和:9968

約数の個数: 32

約数和(自身を含む): 45051552

約数和(自身を除く): 23104042

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9931, 19862, 49655, 99310, 129103, 168827, 258206, 337654, 645515, 844135, 1291030, 1688270, 2194751, 4389502, 10973755, 21947510]

約数ペア:

[(1, 21947510), (2, 10973755), (5, 4389502), (10, 2194751), (13, 1688270), (17, 1291030), (26, 844135), (34, 645515), (65, 337654), (85, 258206), (130, 168827), (170, 129103), (221, 99310), (442, 49655), (1105, 19862), (2210, 9931)]