21994284

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{140989}}^1$

素因数の和:141009

約数の個数: 24

約数和(自身を含む): 55268080

約数和(自身を除く): 33273796

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 140989, 281978, 422967, 563956, 845934, 1691868, 1832857, 3665714, 5498571, 7331428, 10997142, 21994284]

約数ペア:

[(1, 21994284), (2, 10997142), (3, 7331428), (4, 5498571), (6, 3665714), (12, 1832857), (13, 1691868), (26, 845934), (39, 563956), (52, 422967), (78, 281978), (156, 140989)]