217393917

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{179813}}^1$

素因数の和:179860

約数の個数: 16

約数和(自身を含む): 322226688

約数和(自身を除く): 104832771

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 179813, 539439, 2337569, 5574203, 7012707, 16722609, 72464639, 217393917]

約数ペア:

[(1, 217393917), (3, 72464639), (13, 16722609), (31, 7012707), (39, 5574203), (93, 2337569), (403, 539439), (1209, 179813)]