20947212

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{313}}^1$

素因数の和:360

約数の個数: 108

約数和(自身を含む): 62748504

約数和(自身を除く): 41801292

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 169, 198, 234, 286, 313, 338, 396, 429, 468, 507, 572, 626, 676, 858, 939, 1014, 1252, 1287, 1521, 1716, 1859, 1878, 2028, 2574, 2817, 3042, 3443, 3718, 3756, 4069, 5148, 5577, 5634, 6084, 6886, 7436, 8138, 10329, 11154, 11268, 12207, 13772, 16276, 16731, 20658, 22308, 24414, 30987, 33462, 36621, 41316, 44759, 48828, 52897, 61974, 66924, 73242, 89518, 105794, 123948, 134277, 146484, 158691, 179036, 211588, 268554, 317382, 402831, 476073, 537108, 581867, 634764, 805662, 952146, 1163734, 1611324, 1745601, 1904292, 2327468, 3491202, 5236803, 6982404, 10473606, 20947212]

約数ペア:

[(1, 20947212), (2, 10473606), (3, 6982404), (4, 5236803), (6, 3491202), (9, 2327468), (11, 1904292), (12, 1745601), (13, 1611324), (18, 1163734), (22, 952146), (26, 805662), (33, 634764), (36, 581867), (39, 537108), (44, 476073), (52, 402831), (66, 317382), (78, 268554), (99, 211588), (117, 179036), (132, 158691), (143, 146484), (156, 134277), (169, 123948), (198, 105794), (234, 89518), (286, 73242), (313, 66924), (338, 61974), (396, 52897), (429, 48828), (468, 44759), (507, 41316), (572, 36621), (626, 33462), (676, 30987), (858, 24414), (939, 22308), (1014, 20658), (1252, 16731), (1287, 16276), (1521, 13772), (1716, 12207), (1859, 11268), (1878, 11154), (2028, 10329), (2574, 8138), (2817, 7436), (3042, 6886), (3443, 6084), (3718, 5634), (3756, 5577), (4069, 5148)]