21348229

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1063}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 25876480

約数和(自身を除く): 4528251

約数列:

[1, 7, 19, 133, 151, 1057, 1063, 2869, 7441, 20083, 20197, 141379, 160513, 1123591, 3049747, 21348229]

約数ペア:

[(1, 21348229), (7, 3049747), (19, 1123591), (133, 160513), (151, 141379), (1057, 20197), (1063, 20083), (2869, 7441)]