21864540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1187}}^1$

素因数の和:1506

約数の個数: 48

約数和(自身を含む): 61471872

約数和(自身を除く): 39607332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 307, 614, 921, 1187, 1228, 1535, 1842, 2374, 3070, 3561, 3684, 4605, 4748, 5935, 6140, 7122, 9210, 11870, 14244, 17805, 18420, 23740, 35610, 71220, 364409, 728818, 1093227, 1457636, 1822045, 2186454, 3644090, 4372908, 5466135, 7288180, 10932270, 21864540]

約数ペア:

[(1, 21864540), (2, 10932270), (3, 7288180), (4, 5466135), (5, 4372908), (6, 3644090), (10, 2186454), (12, 1822045), (15, 1457636), (20, 1093227), (30, 728818), (60, 364409), (307, 71220), (614, 35610), (921, 23740), (1187, 18420), (1228, 17805), (1535, 14244), (1842, 11870), (2374, 9210), (3070, 7122), (3561, 6140), (3684, 5935), (4605, 4748)]