81871218

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1871}}^1$

素因数の和:1920

約数の個数: 96

約数和(自身を含む): 220776192

約数和(自身を除く): 138904974

約数列:

[1, 2, 3, 6, 9, 11, 13, 17, 18, 22, 26, 33, 34, 39, 51, 66, 78, 99, 102, 117, 143, 153, 187, 198, 221, 234, 286, 306, 374, 429, 442, 561, 663, 858, 1122, 1287, 1326, 1683, 1871, 1989, 2431, 2574, 3366, 3742, 3978, 4862, 5613, 7293, 11226, 14586, 16839, 20581, 21879, 24323, 31807, 33678, 41162, 43758, 48646, 61743, 63614, 72969, 95421, 123486, 145938, 185229, 190842, 218907, 267553, 286263, 349877, 370458, 413491, 437814, 535106, 572526, 699754, 802659, 826982, 1049631, 1240473, 1605318, 2099262, 2407977, 2480946, 3148893, 3721419, 4548401, 4815954, 6297786, 7442838, 9096802, 13645203, 27290406, 40935609, 81871218]

約数ペア:

[(1, 81871218), (2, 40935609), (3, 27290406), (6, 13645203), (9, 9096802), (11, 7442838), (13, 6297786), (17, 4815954), (18, 4548401), (22, 3721419), (26, 3148893), (33, 2480946), (34, 2407977), (39, 2099262), (51, 1605318), (66, 1240473), (78, 1049631), (99, 826982), (102, 802659), (117, 699754), (143, 572526), (153, 535106), (187, 437814), (198, 413491), (221, 370458), (234, 349877), (286, 286263), (306, 267553), (374, 218907), (429, 190842), (442, 185229), (561, 145938), (663, 123486), (858, 95421), (1122, 72969), (1287, 63614), (1326, 61743), (1683, 48646), (1871, 43758), (1989, 41162), (2431, 33678), (2574, 31807), (3366, 24323), (3742, 21879), (3978, 20581), (4862, 16839), (5613, 14586), (7293, 11226)]