20542956

素因数分解:

$2^2\times 3^1\times 7^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 120

約数和(自身を含む): 60232704

約数和(自身を除く): 39689748

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 31, 42, 46, 49, 62, 69, 84, 92, 93, 98, 124, 138, 147, 161, 186, 196, 217, 276, 294, 322, 343, 372, 434, 483, 588, 644, 651, 686, 713, 868, 966, 1029, 1127, 1302, 1372, 1426, 1519, 1932, 2058, 2139, 2254, 2401, 2604, 2852, 3038, 3381, 4116, 4278, 4508, 4557, 4802, 4991, 6076, 6762, 7203, 7889, 8556, 9114, 9604, 9982, 10633, 13524, 14406, 14973, 15778, 18228, 19964, 21266, 23667, 28812, 29946, 31556, 31899, 34937, 42532, 47334, 55223, 59892, 63798, 69874, 74431, 94668, 104811, 110446, 127596, 139748, 148862, 165669, 209622, 220892, 223293, 244559, 297724, 331338, 419244, 446586, 489118, 662676, 733677, 893172, 978236, 1467354, 1711913, 2934708, 3423826, 5135739, 6847652, 10271478, 20542956]

約数ペア:

[(1, 20542956), (2, 10271478), (3, 6847652), (4, 5135739), (6, 3423826), (7, 2934708), (12, 1711913), (14, 1467354), (21, 978236), (23, 893172), (28, 733677), (31, 662676), (42, 489118), (46, 446586), (49, 419244), (62, 331338), (69, 297724), (84, 244559), (92, 223293), (93, 220892), (98, 209622), (124, 165669), (138, 148862), (147, 139748), (161, 127596), (186, 110446), (196, 104811), (217, 94668), (276, 74431), (294, 69874), (322, 63798), (343, 59892), (372, 55223), (434, 47334), (483, 42532), (588, 34937), (644, 31899), (651, 31556), (686, 29946), (713, 28812), (868, 23667), (966, 21266), (1029, 19964), (1127, 18228), (1302, 15778), (1372, 14973), (1426, 14406), (1519, 13524), (1932, 10633), (2058, 9982), (2139, 9604), (2254, 9114), (2401, 8556), (2604, 7889), (2852, 7203), (3038, 6762), (3381, 6076), (4116, 4991), (4278, 4802), (4508, 4557)]