20558097

素因数分解:

$3^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{379}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 36388800

約数和(自身を除く): 15830703

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 123, 147, 189, 287, 369, 379, 441, 861, 1107, 1137, 1323, 2009, 2583, 2653, 3411, 6027, 7749, 7959, 10233, 15539, 18081, 18571, 23877, 46617, 54243, 55713, 71631, 108773, 139851, 167139, 326319, 419553, 501417, 761411, 978957, 2284233, 2936871, 6852699, 20558097]

約数ペア:

[(1, 20558097), (3, 6852699), (7, 2936871), (9, 2284233), (21, 978957), (27, 761411), (41, 501417), (49, 419553), (63, 326319), (123, 167139), (147, 139851), (189, 108773), (287, 71631), (369, 55713), (379, 54243), (441, 46617), (861, 23877), (1107, 18571), (1137, 18081), (1323, 15539), (2009, 10233), (2583, 7959), (2653, 7749), (3411, 6027)]