19727778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{1949}}^1$

素因数の和:2202

約数の個数: 32

約数和(自身を含む): 45302400

約数和(自身を除く): 25574622

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 241, 482, 723, 1446, 1687, 1949, 3374, 3898, 5061, 5847, 10122, 11694, 13643, 27286, 40929, 81858, 469709, 939418, 1409127, 2818254, 3287963, 6575926, 9863889, 19727778]

約数ペア:

[(1, 19727778), (2, 9863889), (3, 6575926), (6, 3287963), (7, 2818254), (14, 1409127), (21, 939418), (42, 469709), (241, 81858), (482, 40929), (723, 27286), (1446, 13643), (1687, 11694), (1949, 10122), (3374, 5847), (3898, 5061)]