21805488

素因数分解:

$2^4\times 3^2\times {\mathrm{163}}^1\times {\mathrm{929}}^1$

素因数の和:1106

約数の個数: 60

約数和(自身を含む): 61465560

約数和(自身を除く): 39660072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 163, 326, 489, 652, 929, 978, 1304, 1467, 1858, 1956, 2608, 2787, 2934, 3716, 3912, 5574, 5868, 7432, 7824, 8361, 11148, 11736, 14864, 16722, 22296, 23472, 33444, 44592, 66888, 133776, 151427, 302854, 454281, 605708, 908562, 1211416, 1362843, 1817124, 2422832, 2725686, 3634248, 5451372, 7268496, 10902744, 21805488]

約数ペア:

[(1, 21805488), (2, 10902744), (3, 7268496), (4, 5451372), (6, 3634248), (8, 2725686), (9, 2422832), (12, 1817124), (16, 1362843), (18, 1211416), (24, 908562), (36, 605708), (48, 454281), (72, 302854), (144, 151427), (163, 133776), (326, 66888), (489, 44592), (652, 33444), (929, 23472), (978, 22296), (1304, 16722), (1467, 14864), (1858, 11736), (1956, 11148), (2608, 8361), (2787, 7824), (2934, 7432), (3716, 5868), (3912, 5574)]