19945398

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:441

約数の個数: 48

約数和(自身を含む): 44509248

約数和(自身を除く): 24563850

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 83, 121, 166, 242, 249, 331, 363, 498, 662, 726, 913, 993, 1826, 1986, 2739, 3641, 5478, 7282, 10043, 10923, 20086, 21846, 27473, 30129, 40051, 54946, 60258, 80102, 82419, 120153, 164838, 240306, 302203, 604406, 906609, 1813218, 3324233, 6648466, 9972699, 19945398]

約数ペア:

[(1, 19945398), (2, 9972699), (3, 6648466), (6, 3324233), (11, 1813218), (22, 906609), (33, 604406), (66, 302203), (83, 240306), (121, 164838), (166, 120153), (242, 82419), (249, 80102), (331, 60258), (363, 54946), (498, 40051), (662, 30129), (726, 27473), (913, 21846), (993, 20086), (1826, 10923), (1986, 10043), (2739, 7282), (3641, 5478)]