21198918

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{587}}^1$

素因数の和:1068

約数の個数: 32

約数和(自身を含む): 45835776

約数和(自身を除く): 24636858

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 463, 587, 926, 1174, 1389, 1761, 2778, 3522, 6019, 7631, 12038, 15262, 18057, 22893, 36114, 45786, 271781, 543562, 815343, 1630686, 3533153, 7066306, 10599459, 21198918]

約数ペア:

[(1, 21198918), (2, 10599459), (3, 7066306), (6, 3533153), (13, 1630686), (26, 815343), (39, 543562), (78, 271781), (463, 45786), (587, 36114), (926, 22893), (1174, 18057), (1389, 15262), (1761, 12038), (2778, 7631), (3522, 6019)]