21263355

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5693}}^1$

素因数の和:5787

約数の個数: 24

約数和(自身を含む): 37307088

約数和(自身を除く): 16043733

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5693, 17079, 28465, 51237, 85395, 256185, 472519, 1417557, 2362595, 4252671, 7087785, 21263355]

約数ペア:

[(1, 21263355), (3, 7087785), (5, 4252671), (9, 2362595), (15, 1417557), (45, 472519), (83, 256185), (249, 85395), (415, 51237), (747, 28465), (1245, 17079), (3735, 5693)]