21680340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:437

約数の個数: 96

約数和(自身を含む): 67060224

約数和(自身を除く): 45379884

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 107, 110, 132, 165, 214, 220, 307, 321, 330, 428, 535, 614, 642, 660, 921, 1070, 1177, 1228, 1284, 1535, 1605, 1842, 2140, 2354, 3070, 3210, 3377, 3531, 3684, 4605, 4708, 5885, 6140, 6420, 6754, 7062, 9210, 10131, 11770, 13508, 14124, 16885, 17655, 18420, 20262, 23540, 32849, 33770, 35310, 40524, 50655, 65698, 67540, 70620, 98547, 101310, 131396, 164245, 197094, 202620, 328490, 361339, 394188, 492735, 656980, 722678, 985470, 1084017, 1445356, 1806695, 1970940, 2168034, 3613390, 4336068, 5420085, 7226780, 10840170, 21680340]

約数ペア:

[(1, 21680340), (2, 10840170), (3, 7226780), (4, 5420085), (5, 4336068), (6, 3613390), (10, 2168034), (11, 1970940), (12, 1806695), (15, 1445356), (20, 1084017), (22, 985470), (30, 722678), (33, 656980), (44, 492735), (55, 394188), (60, 361339), (66, 328490), (107, 202620), (110, 197094), (132, 164245), (165, 131396), (214, 101310), (220, 98547), (307, 70620), (321, 67540), (330, 65698), (428, 50655), (535, 40524), (614, 35310), (642, 33770), (660, 32849), (921, 23540), (1070, 20262), (1177, 18420), (1228, 17655), (1284, 16885), (1535, 14124), (1605, 13508), (1842, 11770), (2140, 10131), (2354, 9210), (3070, 7062), (3210, 6754), (3377, 6420), (3531, 6140), (3684, 5885), (4605, 4708)]