20406456

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2169

約数の個数: 96

約数和(自身を含む): 66518400

約数和(自身を除く): 46111944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 28, 36, 38, 42, 56, 57, 63, 72, 76, 84, 114, 126, 133, 152, 168, 171, 228, 252, 266, 342, 399, 456, 504, 532, 684, 798, 1064, 1197, 1368, 1596, 2131, 2394, 3192, 4262, 4788, 6393, 8524, 9576, 12786, 14917, 17048, 19179, 25572, 29834, 38358, 40489, 44751, 51144, 59668, 76716, 80978, 89502, 119336, 121467, 134253, 153432, 161956, 179004, 242934, 268506, 283423, 323912, 358008, 364401, 485868, 537012, 566846, 728802, 850269, 971736, 1074024, 1133692, 1457604, 1700538, 2267384, 2550807, 2915208, 3401076, 5101614, 6802152, 10203228, 20406456]

約数ペア:

[(1, 20406456), (2, 10203228), (3, 6802152), (4, 5101614), (6, 3401076), (7, 2915208), (8, 2550807), (9, 2267384), (12, 1700538), (14, 1457604), (18, 1133692), (19, 1074024), (21, 971736), (24, 850269), (28, 728802), (36, 566846), (38, 537012), (42, 485868), (56, 364401), (57, 358008), (63, 323912), (72, 283423), (76, 268506), (84, 242934), (114, 179004), (126, 161956), (133, 153432), (152, 134253), (168, 121467), (171, 119336), (228, 89502), (252, 80978), (266, 76716), (342, 59668), (399, 51144), (456, 44751), (504, 40489), (532, 38358), (684, 29834), (798, 25572), (1064, 19179), (1197, 17048), (1368, 14917), (1596, 12786), (2131, 9576), (2394, 8524), (3192, 6393), (4262, 4788)]