20267715

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4519}}^1$

素因数の和:4563

約数の個数: 32

約数和(自身を含む): 36449280

約数和(自身を除く): 16181565

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4519, 13557, 22595, 58747, 67785, 103937, 176241, 293735, 311811, 519685, 881205, 1351181, 1559055, 4053543, 6755905, 20267715]

約数ペア:

[(1, 20267715), (3, 6755905), (5, 4053543), (13, 1559055), (15, 1351181), (23, 881205), (39, 519685), (65, 311811), (69, 293735), (115, 176241), (195, 103937), (299, 67785), (345, 58747), (897, 22595), (1495, 13557), (4485, 4519)]