21233970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3323}}^1$

素因数の和:3407

約数の個数: 48

約数和(自身を含む): 56002752

約数和(自身を除く): 34768782

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 3323, 6390, 6646, 9969, 16615, 19938, 29907, 33230, 49845, 59814, 99690, 149535, 235933, 299070, 471866, 707799, 1179665, 1415598, 2123397, 2359330, 3538995, 4246794, 7077990, 10616985, 21233970]

約数ペア:

[(1, 21233970), (2, 10616985), (3, 7077990), (5, 4246794), (6, 3538995), (9, 2359330), (10, 2123397), (15, 1415598), (18, 1179665), (30, 707799), (45, 471866), (71, 299070), (90, 235933), (142, 149535), (213, 99690), (355, 59814), (426, 49845), (639, 33230), (710, 29907), (1065, 19938), (1278, 16615), (2130, 9969), (3195, 6646), (3323, 6390)]