21903990213

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2420063}}^1$

素因数の和:2420504

約数の個数: 16

約数和(自身を含む): 33454964736

約数和(自身を除く): 11550974523

約数列:

[1, 3, 7, 21, 431, 1293, 3017, 9051, 2420063, 7260189, 16940441, 50821323, 1043047153, 3129141459, 7301330071, 21903990213]

約数ペア:

[(1, 21903990213), (3, 7301330071), (7, 3129141459), (21, 1043047153), (431, 50821323), (1293, 16940441), (3017, 7260189), (9051, 2420063)]