19718556

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{11491}}^1$

素因数の和:11522

約数の個数: 48

約数和(自身を含む): 54058368

約数和(自身を除く): 34339812

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716, 11491, 22982, 34473, 45964, 68946, 126401, 137892, 149383, 252802, 298766, 379203, 448149, 505604, 597532, 758406, 896298, 1516812, 1643213, 1792596, 3286426, 4929639, 6572852, 9859278, 19718556]

約数ペア:

[(1, 19718556), (2, 9859278), (3, 6572852), (4, 4929639), (6, 3286426), (11, 1792596), (12, 1643213), (13, 1516812), (22, 896298), (26, 758406), (33, 597532), (39, 505604), (44, 448149), (52, 379203), (66, 298766), (78, 252802), (132, 149383), (143, 137892), (156, 126401), (286, 68946), (429, 45964), (572, 34473), (858, 22982), (1716, 11491)]