21219480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58943}}^1$

素因数の和:58960

約数の個数: 48

約数和(自身を含む): 68964480

約数和(自身を除く): 47745000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58943, 117886, 176829, 235772, 294715, 353658, 471544, 530487, 589430, 707316, 884145, 1060974, 1178860, 1414632, 1768290, 2121948, 2357720, 2652435, 3536580, 4243896, 5304870, 7073160, 10609740, 21219480]

約数ペア:

[(1, 21219480), (2, 10609740), (3, 7073160), (4, 5304870), (5, 4243896), (6, 3536580), (8, 2652435), (9, 2357720), (10, 2121948), (12, 1768290), (15, 1414632), (18, 1178860), (20, 1060974), (24, 884145), (30, 707316), (36, 589430), (40, 530487), (45, 471544), (60, 353658), (72, 294715), (90, 235772), (120, 176829), (180, 117886), (360, 58943)]