20959848

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:496

約数の個数: 144

約数和(自身を含む): 71269380

約数和(自身を除く): 50309532

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 39, 42, 49, 52, 56, 63, 72, 78, 84, 91, 98, 104, 117, 126, 147, 156, 168, 182, 196, 234, 252, 273, 294, 312, 364, 392, 441, 457, 468, 504, 546, 588, 637, 728, 819, 882, 914, 936, 1092, 1176, 1274, 1371, 1638, 1764, 1828, 1911, 2184, 2548, 2742, 3199, 3276, 3528, 3656, 3822, 4113, 5096, 5484, 5733, 5941, 6398, 6552, 7644, 8226, 9597, 10968, 11466, 11882, 12796, 15288, 16452, 17823, 19194, 22393, 22932, 23764, 25592, 28791, 32904, 35646, 38388, 41587, 44786, 45864, 47528, 53469, 57582, 67179, 71292, 76776, 83174, 89572, 106938, 115164, 124761, 134358, 142584, 166348, 179144, 201537, 213876, 230328, 249522, 268716, 291109, 332696, 374283, 403074, 427752, 499044, 537432, 582218, 748566, 806148, 873327, 998088, 1164436, 1497132, 1612296, 1746654, 2328872, 2619981, 2994264, 3493308, 5239962, 6986616, 10479924, 20959848]

約数ペア:

[(1, 20959848), (2, 10479924), (3, 6986616), (4, 5239962), (6, 3493308), (7, 2994264), (8, 2619981), (9, 2328872), (12, 1746654), (13, 1612296), (14, 1497132), (18, 1164436), (21, 998088), (24, 873327), (26, 806148), (28, 748566), (36, 582218), (39, 537432), (42, 499044), (49, 427752), (52, 403074), (56, 374283), (63, 332696), (72, 291109), (78, 268716), (84, 249522), (91, 230328), (98, 213876), (104, 201537), (117, 179144), (126, 166348), (147, 142584), (156, 134358), (168, 124761), (182, 115164), (196, 106938), (234, 89572), (252, 83174), (273, 76776), (294, 71292), (312, 67179), (364, 57582), (392, 53469), (441, 47528), (457, 45864), (468, 44786), (504, 41587), (546, 38388), (588, 35646), (637, 32904), (728, 28791), (819, 25592), (882, 23764), (914, 22932), (936, 22393), (1092, 19194), (1176, 17823), (1274, 16452), (1371, 15288), (1638, 12796), (1764, 11882), (1828, 11466), (1911, 10968), (2184, 9597), (2548, 8226), (2742, 7644), (3199, 6552), (3276, 6398), (3528, 5941), (3656, 5733), (3822, 5484), (4113, 5096)]