18898958

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 32672640

約数和(自身を除く): 13773682

約数列:

[1, 2, 13, 19, 26, 38, 67, 134, 247, 494, 571, 871, 1142, 1273, 1742, 2546, 7423, 10849, 14846, 16549, 21698, 33098, 38257, 76514, 141037, 282074, 497341, 726883, 994682, 1453766, 9449479, 18898958]

約数ペア:

[(1, 18898958), (2, 9449479), (13, 1453766), (19, 994682), (26, 726883), (38, 497341), (67, 282074), (134, 141037), (247, 76514), (494, 38257), (571, 33098), (871, 21698), (1142, 16549), (1273, 14846), (1742, 10849), (2546, 7423)]