21151065

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1373}}^1$

素因数の和:1473

約数の個数: 32

約数和(自身を含む): 36933120

約数和(自身を除く): 15782055

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 1373, 3081, 4119, 5135, 6865, 15405, 17849, 20595, 53547, 89245, 108467, 267735, 325401, 542335, 1410071, 1627005, 4230213, 7050355, 21151065]

約数ペア:

[(1, 21151065), (3, 7050355), (5, 4230213), (13, 1627005), (15, 1410071), (39, 542335), (65, 325401), (79, 267735), (195, 108467), (237, 89245), (395, 53547), (1027, 20595), (1185, 17849), (1373, 15405), (3081, 6865), (4119, 5135)]