21096420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7481}}^1$

素因数の和:7540

約数の個数: 48

約数和(自身を含む): 60334848

約数和(自身を除く): 39238428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7481, 14962, 22443, 29924, 37405, 44886, 74810, 89772, 112215, 149620, 224430, 351607, 448860, 703214, 1054821, 1406428, 1758035, 2109642, 3516070, 4219284, 5274105, 7032140, 10548210, 21096420]

約数ペア:

[(1, 21096420), (2, 10548210), (3, 7032140), (4, 5274105), (5, 4219284), (6, 3516070), (10, 2109642), (12, 1758035), (15, 1406428), (20, 1054821), (30, 703214), (47, 448860), (60, 351607), (94, 224430), (141, 149620), (188, 112215), (235, 89772), (282, 74810), (470, 44886), (564, 37405), (705, 29924), (940, 22443), (1410, 14962), (2820, 7481)]