20018718

素因数分解:

$2^1\times 3^3\times {\mathrm{389}}^1\times {\mathrm{953}}^1$

素因数の和:1353

約数の個数: 32

約数和(自身を含む): 44647200

約数和(自身を除く): 24628482

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389, 778, 953, 1167, 1906, 2334, 2859, 3501, 5718, 7002, 8577, 10503, 17154, 21006, 25731, 51462, 370717, 741434, 1112151, 2224302, 3336453, 6672906, 10009359, 20018718]

約数ペア:

[(1, 20018718), (2, 10009359), (3, 6672906), (6, 3336453), (9, 2224302), (18, 1112151), (27, 741434), (54, 370717), (389, 51462), (778, 25731), (953, 21006), (1167, 17154), (1906, 10503), (2334, 8577), (2859, 7002), (3501, 5718)]