21379716

素因数分解:

$2^2\times 3^2\times {\mathrm{401}}^1\times {\mathrm{1481}}^1$

素因数の和:1892

約数の個数: 36

約数和(自身を含む): 54214524

約数和(自身を除く): 32834808

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 401, 802, 1203, 1481, 1604, 2406, 2962, 3609, 4443, 4812, 5924, 7218, 8886, 13329, 14436, 17772, 26658, 53316, 593881, 1187762, 1781643, 2375524, 3563286, 5344929, 7126572, 10689858, 21379716]

約数ペア:

[(1, 21379716), (2, 10689858), (3, 7126572), (4, 5344929), (6, 3563286), (9, 2375524), (12, 1781643), (18, 1187762), (36, 593881), (401, 53316), (802, 26658), (1203, 17772), (1481, 14436), (1604, 13329), (2406, 8886), (2962, 7218), (3609, 5924), (4443, 4812)]