18720876

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 46617984

約数和(自身を除く): 27897108

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 163, 204, 326, 489, 563, 652, 978, 1126, 1689, 1956, 2252, 2771, 3378, 5542, 6756, 8313, 9571, 11084, 16626, 19142, 28713, 33252, 38284, 57426, 91769, 114852, 183538, 275307, 367076, 550614, 1101228, 1560073, 3120146, 4680219, 6240292, 9360438, 18720876]

約数ペア:

[(1, 18720876), (2, 9360438), (3, 6240292), (4, 4680219), (6, 3120146), (12, 1560073), (17, 1101228), (34, 550614), (51, 367076), (68, 275307), (102, 183538), (163, 114852), (204, 91769), (326, 57426), (489, 38284), (563, 33252), (652, 28713), (978, 19142), (1126, 16626), (1689, 11084), (1956, 9571), (2252, 8313), (2771, 6756), (3378, 5542)]