21996693

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{503}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 10868139

約数列:

[1, 3, 9, 43, 113, 129, 339, 387, 503, 1017, 1509, 4527, 4859, 14577, 21629, 43731, 56839, 64887, 170517, 194661, 511551, 2444077, 7332231, 21996693]

約数ペア:

[(1, 21996693), (3, 7332231), (9, 2444077), (43, 511551), (113, 194661), (129, 170517), (339, 64887), (387, 56839), (503, 43731), (1017, 21629), (1509, 14577), (4527, 4859)]