18153639

素因数分解:

$3^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:437

約数の個数: 40

約数和(自身を含む): 31398048

約数和(自身を除く): 13244409

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 101, 189, 303, 317, 567, 707, 909, 951, 2121, 2219, 2727, 2853, 6363, 6657, 8181, 8559, 19089, 19971, 25677, 32017, 57267, 59913, 96051, 179739, 224119, 288153, 672357, 864459, 2017071, 2593377, 6051213, 18153639]

約数ペア:

[(1, 18153639), (3, 6051213), (7, 2593377), (9, 2017071), (21, 864459), (27, 672357), (63, 288153), (81, 224119), (101, 179739), (189, 96051), (303, 59913), (317, 57267), (567, 32017), (707, 25677), (909, 19971), (951, 19089), (2121, 8559), (2219, 8181), (2727, 6657), (2853, 6363)]