21333660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3323}}^1$

素因数の和:3442

約数の個数: 48

約数和(自身を含む): 60310656

約数和(自身を除く): 38976996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 321, 428, 535, 642, 1070, 1284, 1605, 2140, 3210, 3323, 6420, 6646, 9969, 13292, 16615, 19938, 33230, 39876, 49845, 66460, 99690, 199380, 355561, 711122, 1066683, 1422244, 1777805, 2133366, 3555610, 4266732, 5333415, 7111220, 10666830, 21333660]

約数ペア:

[(1, 21333660), (2, 10666830), (3, 7111220), (4, 5333415), (5, 4266732), (6, 3555610), (10, 2133366), (12, 1777805), (15, 1422244), (20, 1066683), (30, 711122), (60, 355561), (107, 199380), (214, 99690), (321, 66460), (428, 49845), (535, 39876), (642, 33230), (1070, 19938), (1284, 16615), (1605, 13292), (2140, 9969), (3210, 6646), (3323, 6420)]