21931664

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{17351}}^1$

素因数の和:17438

約数の個数: 20

約数和(自身を含む): 43032960

約数和(自身を除く): 21101296

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 17351, 34702, 69404, 138808, 277616, 1370729, 2741458, 5482916, 10965832, 21931664]

約数ペア:

[(1, 21931664), (2, 10965832), (4, 5482916), (8, 2741458), (16, 1370729), (79, 277616), (158, 138808), (316, 69404), (632, 34702), (1264, 17351)]