1213884021

素因数分解:

$3^1\times 7^1\times {\mathrm{2659}}^1\times {\mathrm{21739}}^1$

素因数の和:24408

約数の個数: 16

約数和(自身を含む): 1850508800

約数和(自身を除く): 636624779

約数列:

[1, 3, 7, 21, 2659, 7977, 18613, 21739, 55839, 65217, 152173, 456519, 57804001, 173412003, 404628007, 1213884021]

約数ペア:

[(1, 1213884021), (3, 404628007), (7, 173412003), (21, 57804001), (2659, 456519), (7977, 152173), (18613, 65217), (21739, 55839)]