21553017

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:724

約数の個数: 16

約数和(自身を含む): 29306880

約数和(自身を除く): 7753863

約数列:

[1, 3, 79, 211, 237, 431, 633, 1293, 16669, 34049, 50007, 90941, 102147, 272823, 7184339, 21553017]

約数ペア:

[(1, 21553017), (3, 7184339), (79, 272823), (211, 102147), (237, 90941), (431, 50007), (633, 34049), (1293, 16669)]