20720484

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{33857}}^1$

素因数の和:33884

約数の個数: 36

約数和(自身を含む): 55459404

約数和(自身を除く): 34738920

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612, 33857, 67714, 101571, 135428, 203142, 304713, 406284, 575569, 609426, 1151138, 1218852, 1726707, 2302276, 3453414, 5180121, 6906828, 10360242, 20720484]

約数ペア:

[(1, 20720484), (2, 10360242), (3, 6906828), (4, 5180121), (6, 3453414), (9, 2302276), (12, 1726707), (17, 1218852), (18, 1151138), (34, 609426), (36, 575569), (51, 406284), (68, 304713), (102, 203142), (153, 135428), (204, 101571), (306, 67714), (612, 33857)]