21605337

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9719}}^1$

素因数の和:9757

約数の個数: 24

約数和(自身を含む): 35380800

約数和(自身を除く): 13775463

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9719, 29157, 87471, 126347, 184661, 379041, 553983, 1137123, 1661949, 2400593, 7201779, 21605337]

約数ペア:

[(1, 21605337), (3, 7201779), (9, 2400593), (13, 1661949), (19, 1137123), (39, 553983), (57, 379041), (117, 184661), (171, 126347), (247, 87471), (741, 29157), (2223, 9719)]