1991418

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 4736928

約数和(自身を除く): 2745510

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 121, 143, 211, 242, 286, 363, 422, 429, 633, 726, 858, 1266, 1573, 2321, 2743, 3146, 4642, 4719, 5486, 6963, 8229, 9438, 13926, 16458, 25531, 30173, 51062, 60346, 76593, 90519, 153186, 181038, 331903, 663806, 995709, 1991418]

約数ペア:

[(1, 1991418), (2, 995709), (3, 663806), (6, 331903), (11, 181038), (13, 153186), (22, 90519), (26, 76593), (33, 60346), (39, 51062), (66, 30173), (78, 25531), (121, 16458), (143, 13926), (211, 9438), (242, 8229), (286, 6963), (363, 5486), (422, 4719), (429, 4642), (633, 3146), (726, 2743), (858, 2321), (1266, 1573)]