221323788

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3391}}^1$

素因数の和:3452

約数の個数: 108

約数和(自身を含む): 668583552

約数和(自身を除く): 447259764

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 49, 63, 74, 84, 98, 111, 126, 147, 148, 196, 222, 252, 259, 294, 333, 441, 444, 518, 588, 666, 777, 882, 1036, 1332, 1554, 1764, 1813, 2331, 3108, 3391, 3626, 4662, 5439, 6782, 7252, 9324, 10173, 10878, 13564, 16317, 20346, 21756, 23737, 30519, 32634, 40692, 47474, 61038, 65268, 71211, 94948, 122076, 125467, 142422, 166159, 213633, 250934, 284844, 332318, 376401, 427266, 498477, 501868, 664636, 752802, 854532, 878269, 996954, 1129203, 1495431, 1505604, 1756538, 1993908, 2258406, 2634807, 2990862, 3513076, 4516812, 5269614, 5981724, 6147883, 7904421, 10539228, 12295766, 15808842, 18443649, 24591532, 31617684, 36887298, 55330947, 73774596, 110661894, 221323788]

約数ペア:

[(1, 221323788), (2, 110661894), (3, 73774596), (4, 55330947), (6, 36887298), (7, 31617684), (9, 24591532), (12, 18443649), (14, 15808842), (18, 12295766), (21, 10539228), (28, 7904421), (36, 6147883), (37, 5981724), (42, 5269614), (49, 4516812), (63, 3513076), (74, 2990862), (84, 2634807), (98, 2258406), (111, 1993908), (126, 1756538), (147, 1505604), (148, 1495431), (196, 1129203), (222, 996954), (252, 878269), (259, 854532), (294, 752802), (333, 664636), (441, 501868), (444, 498477), (518, 427266), (588, 376401), (666, 332318), (777, 284844), (882, 250934), (1036, 213633), (1332, 166159), (1554, 142422), (1764, 125467), (1813, 122076), (2331, 94948), (3108, 71211), (3391, 65268), (3626, 61038), (4662, 47474), (5439, 40692), (6782, 32634), (7252, 30519), (9324, 23737), (10173, 21756), (10878, 20346), (13564, 16317)]