21763240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17551}}^1$

素因数の和:17593

約数の個数: 32

約数和(自身を含む): 50549760

約数和(自身を除く): 28786520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17551, 35102, 70204, 87755, 140408, 175510, 351020, 544081, 702040, 1088162, 2176324, 2720405, 4352648, 5440810, 10881620, 21763240]

約数ペア:

[(1, 21763240), (2, 10881620), (4, 5440810), (5, 4352648), (8, 2720405), (10, 2176324), (20, 1088162), (31, 702040), (40, 544081), (62, 351020), (124, 175510), (155, 140408), (248, 87755), (310, 70204), (620, 35102), (1240, 17551)]