21218601

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13421}}^1$

素因数の和:13472

約数の個数: 16

約数和(自身を含む): 30924288

約数和(自身を除く): 9705687

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 13421, 40263, 228157, 416051, 684471, 1248153, 7072867, 21218601]

約数ペア:

[(1, 21218601), (3, 7072867), (17, 1248153), (31, 684471), (51, 416051), (93, 228157), (527, 40263), (1581, 13421)]