21287304

素因数分解:

$2^3\times 3^2\times {\mathrm{173}}^1\times {\mathrm{1709}}^1$

素因数の和:1894

約数の個数: 48

約数和(自身を含む): 58020300

約数和(自身を除く): 36732996

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 173, 346, 519, 692, 1038, 1384, 1557, 1709, 2076, 3114, 3418, 4152, 5127, 6228, 6836, 10254, 12456, 13672, 15381, 20508, 30762, 41016, 61524, 123048, 295657, 591314, 886971, 1182628, 1773942, 2365256, 2660913, 3547884, 5321826, 7095768, 10643652, 21287304]

約数ペア:

[(1, 21287304), (2, 10643652), (3, 7095768), (4, 5321826), (6, 3547884), (8, 2660913), (9, 2365256), (12, 1773942), (18, 1182628), (24, 886971), (36, 591314), (72, 295657), (173, 123048), (346, 61524), (519, 41016), (692, 30762), (1038, 20508), (1384, 15381), (1557, 13672), (1709, 12456), (2076, 10254), (3114, 6836), (3418, 6228), (4152, 5127)]