21185892

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 68490240

約数和(自身を除く): 47304348

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 29, 36, 39, 42, 52, 58, 63, 78, 84, 87, 91, 116, 117, 126, 156, 174, 182, 203, 223, 234, 252, 261, 273, 348, 364, 377, 406, 446, 468, 522, 546, 609, 669, 754, 812, 819, 892, 1044, 1092, 1131, 1218, 1338, 1508, 1561, 1638, 1827, 2007, 2262, 2436, 2639, 2676, 2899, 3122, 3276, 3393, 3654, 4014, 4524, 4683, 5278, 5798, 6244, 6467, 6786, 7308, 7917, 8028, 8697, 9366, 10556, 11596, 12934, 13572, 14049, 15834, 17394, 18732, 19401, 20293, 23751, 25868, 26091, 28098, 31668, 34788, 38802, 40586, 45269, 47502, 52182, 56196, 58203, 60879, 77604, 81172, 84071, 90538, 95004, 104364, 116406, 121758, 135807, 168142, 181076, 182637, 232812, 243516, 252213, 271614, 336284, 365274, 407421, 504426, 543228, 588497, 730548, 756639, 814842, 1008852, 1176994, 1513278, 1629684, 1765491, 2353988, 3026556, 3530982, 5296473, 7061964, 10592946, 21185892]

約数ペア:

[(1, 21185892), (2, 10592946), (3, 7061964), (4, 5296473), (6, 3530982), (7, 3026556), (9, 2353988), (12, 1765491), (13, 1629684), (14, 1513278), (18, 1176994), (21, 1008852), (26, 814842), (28, 756639), (29, 730548), (36, 588497), (39, 543228), (42, 504426), (52, 407421), (58, 365274), (63, 336284), (78, 271614), (84, 252213), (87, 243516), (91, 232812), (116, 182637), (117, 181076), (126, 168142), (156, 135807), (174, 121758), (182, 116406), (203, 104364), (223, 95004), (234, 90538), (252, 84071), (261, 81172), (273, 77604), (348, 60879), (364, 58203), (377, 56196), (406, 52182), (446, 47502), (468, 45269), (522, 40586), (546, 38802), (609, 34788), (669, 31668), (754, 28098), (812, 26091), (819, 25868), (892, 23751), (1044, 20293), (1092, 19401), (1131, 18732), (1218, 17394), (1338, 15834), (1508, 14049), (1561, 13572), (1638, 12934), (1827, 11596), (2007, 10556), (2262, 9366), (2436, 8697), (2639, 8028), (2676, 7917), (2899, 7308), (3122, 6786), (3276, 6467), (3393, 6244), (3654, 5798), (4014, 5278), (4524, 4683)]