21867390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{242971}}^1$

素因数の和:242984

約数の個数: 24

約数和(自身を含む): 56855448

約数和(自身を除く): 34988058

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 242971, 485942, 728913, 1214855, 1457826, 2186739, 2429710, 3644565, 4373478, 7289130, 10933695, 21867390]

約数ペア:

[(1, 21867390), (2, 10933695), (3, 7289130), (5, 4373478), (6, 3644565), (9, 2429710), (10, 2186739), (15, 1457826), (18, 1214855), (30, 728913), (45, 485942), (90, 242971)]