20456982

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 58705920

約数和(自身を除く): 38248938

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 23, 26, 27, 39, 42, 46, 54, 63, 69, 78, 91, 117, 126, 138, 161, 181, 182, 189, 207, 234, 273, 299, 322, 351, 362, 378, 414, 483, 543, 546, 598, 621, 702, 819, 897, 966, 1086, 1242, 1267, 1449, 1629, 1638, 1794, 2093, 2353, 2457, 2534, 2691, 2898, 3258, 3801, 4163, 4186, 4347, 4706, 4887, 4914, 5382, 6279, 7059, 7602, 8073, 8326, 8694, 9774, 11403, 12489, 12558, 14118, 16146, 16471, 18837, 21177, 22806, 24978, 29141, 32942, 34209, 37467, 37674, 42354, 49413, 54119, 56511, 58282, 63531, 68418, 74934, 87423, 98826, 108238, 112401, 113022, 127062, 148239, 162357, 174846, 224802, 262269, 296478, 324714, 378833, 444717, 487071, 524538, 757666, 786807, 889434, 974142, 1136499, 1461213, 1573614, 2272998, 2922426, 3409497, 6818994, 10228491, 20456982]

約数ペア:

[(1, 20456982), (2, 10228491), (3, 6818994), (6, 3409497), (7, 2922426), (9, 2272998), (13, 1573614), (14, 1461213), (18, 1136499), (21, 974142), (23, 889434), (26, 786807), (27, 757666), (39, 524538), (42, 487071), (46, 444717), (54, 378833), (63, 324714), (69, 296478), (78, 262269), (91, 224802), (117, 174846), (126, 162357), (138, 148239), (161, 127062), (181, 113022), (182, 112401), (189, 108238), (207, 98826), (234, 87423), (273, 74934), (299, 68418), (322, 63531), (351, 58282), (362, 56511), (378, 54119), (414, 49413), (483, 42354), (543, 37674), (546, 37467), (598, 34209), (621, 32942), (702, 29141), (819, 24978), (897, 22806), (966, 21177), (1086, 18837), (1242, 16471), (1267, 16146), (1449, 14118), (1629, 12558), (1638, 12489), (1794, 11403), (2093, 9774), (2353, 8694), (2457, 8326), (2534, 8073), (2691, 7602), (2898, 7059), (3258, 6279), (3801, 5382), (4163, 4914), (4186, 4887), (4347, 4706)]