20918130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{697271}}^1$

素因数の和:697281

約数の個数: 16

約数和(自身を含む): 50203584

約数和(自身を除く): 29285454

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 697271, 1394542, 2091813, 3486355, 4183626, 6972710, 10459065, 20918130]

約数ペア:

[(1, 20918130), (2, 10459065), (3, 6972710), (5, 4183626), (6, 3486355), (10, 2091813), (15, 1394542), (30, 697271)]