21675180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12457}}^1$

素因数の和:12498

約数の個数: 48

約数和(自身を含む): 62788320

約数和(自身を除く): 41113140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12457, 24914, 37371, 49828, 62285, 74742, 124570, 149484, 186855, 249140, 361253, 373710, 722506, 747420, 1083759, 1445012, 1806265, 2167518, 3612530, 4335036, 5418795, 7225060, 10837590, 21675180]

約数ペア:

[(1, 21675180), (2, 10837590), (3, 7225060), (4, 5418795), (5, 4335036), (6, 3612530), (10, 2167518), (12, 1806265), (15, 1445012), (20, 1083759), (29, 747420), (30, 722506), (58, 373710), (60, 361253), (87, 249140), (116, 186855), (145, 149484), (174, 124570), (290, 74742), (348, 62285), (435, 49828), (580, 37371), (870, 24914), (1740, 12457)]