21466641

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 12805359

約数列:

[1, 3, 7, 21, 29, 87, 101, 203, 303, 349, 609, 707, 1047, 2121, 2443, 2929, 7329, 8787, 10121, 20503, 30363, 35249, 61509, 70847, 105747, 212541, 246743, 740229, 1022221, 3066663, 7155547, 21466641]

約数ペア:

[(1, 21466641), (3, 7155547), (7, 3066663), (21, 1022221), (29, 740229), (87, 246743), (101, 212541), (203, 105747), (303, 70847), (349, 61509), (609, 35249), (707, 30363), (1047, 20503), (2121, 10121), (2443, 8787), (2929, 7329)]