21507252

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137867}}^1$

素因数の和:137887

約数の個数: 24

約数和(自身を含む): 54044256

約数和(自身を除く): 32537004

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 137867, 275734, 413601, 551468, 827202, 1654404, 1792271, 3584542, 5376813, 7169084, 10753626, 21507252]

約数ペア:

[(1, 21507252), (2, 10753626), (3, 7169084), (4, 5376813), (6, 3584542), (12, 1792271), (13, 1654404), (26, 827202), (39, 551468), (52, 413601), (78, 275734), (156, 137867)]