21047130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17989}}^1$

素因数の和:18015

約数の個数: 48

約数和(自身を含む): 58935240

約数和(自身を除く): 37888110

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17989, 35978, 53967, 89945, 107934, 161901, 179890, 233857, 269835, 323802, 467714, 539670, 701571, 809505, 1169285, 1403142, 1619010, 2104713, 2338570, 3507855, 4209426, 7015710, 10523565, 21047130]

約数ペア:

[(1, 21047130), (2, 10523565), (3, 7015710), (5, 4209426), (6, 3507855), (9, 2338570), (10, 2104713), (13, 1619010), (15, 1403142), (18, 1169285), (26, 809505), (30, 701571), (39, 539670), (45, 467714), (65, 323802), (78, 269835), (90, 233857), (117, 179890), (130, 161901), (195, 107934), (234, 89945), (390, 53967), (585, 35978), (1170, 17989)]