18860156

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 20330884

約数列:

[1, 2, 4, 7, 14, 28, 53, 71, 106, 142, 179, 212, 284, 358, 371, 497, 716, 742, 994, 1253, 1484, 1988, 2506, 3763, 5012, 7526, 9487, 12709, 15052, 18974, 25418, 26341, 37948, 50836, 52682, 66409, 88963, 105364, 132818, 177926, 265636, 355852, 673577, 1347154, 2694308, 4715039, 9430078, 18860156]

約数ペア:

[(1, 18860156), (2, 9430078), (4, 4715039), (7, 2694308), (14, 1347154), (28, 673577), (53, 355852), (71, 265636), (106, 177926), (142, 132818), (179, 105364), (212, 88963), (284, 66409), (358, 52682), (371, 50836), (497, 37948), (716, 26341), (742, 25418), (994, 18974), (1253, 15052), (1484, 12709), (1988, 9487), (2506, 7526), (3763, 5012)]