21625576

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4339}}^1$

素因数の和:4441

約数の個数: 32

約数和(自身を含む): 46872000

約数和(自身を除く): 25246424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4339, 4984, 8678, 17356, 30373, 34712, 60746, 121492, 242984, 386171, 772342, 1544684, 2703197, 3089368, 5406394, 10812788, 21625576]

約数ペア:

[(1, 21625576), (2, 10812788), (4, 5406394), (7, 3089368), (8, 2703197), (14, 1544684), (28, 772342), (56, 386171), (89, 242984), (178, 121492), (356, 60746), (623, 34712), (712, 30373), (1246, 17356), (2492, 8678), (4339, 4984)]