21046137

素因数分解:

$3^1\times 7^3\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 33196800

約数和(自身を除く): 12150663

約数列:

[1, 3, 7, 21, 49, 113, 147, 181, 339, 343, 543, 791, 1029, 1267, 2373, 3801, 5537, 8869, 16611, 20453, 26607, 38759, 61359, 62083, 116277, 143171, 186249, 429513, 1002197, 3006591, 7015379, 21046137]

約数ペア:

[(1, 21046137), (3, 7015379), (7, 3006591), (21, 1002197), (49, 429513), (113, 186249), (147, 143171), (181, 116277), (339, 62083), (343, 61359), (543, 38759), (791, 26607), (1029, 20453), (1267, 16611), (2373, 8869), (3801, 5537)]