21813270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5231}}^1$

素因数の和:5380

約数の個数: 32

約数和(自身を含む): 52738560

約数和(自身を除く): 30925290

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 139, 278, 417, 695, 834, 1390, 2085, 4170, 5231, 10462, 15693, 26155, 31386, 52310, 78465, 156930, 727109, 1454218, 2181327, 3635545, 4362654, 7271090, 10906635, 21813270]

約数ペア:

[(1, 21813270), (2, 10906635), (3, 7271090), (5, 4362654), (6, 3635545), (10, 2181327), (15, 1454218), (30, 727109), (139, 156930), (278, 78465), (417, 52310), (695, 31386), (834, 26155), (1390, 15693), (2085, 10462), (4170, 5231)]