21553535

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5897}}^1$

素因数の和:5962

約数の個数: 16

約数和(自身を含む): 28027296

約数和(自身を除く): 6473761

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5897, 29485, 100249, 253571, 501245, 1267855, 4310707, 21553535]

約数ペア:

[(1, 21553535), (5, 4310707), (17, 1267855), (43, 501245), (85, 253571), (215, 100249), (731, 29485), (3655, 5897)]