20859888

素因数分解:

$2^4\times 3^1\times 7^4\times {\mathrm{181}}^1$

素因数の和:220

約数の個数: 100

約数和(自身を含む): 63212968

約数和(自身を除く): 42353080

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 84, 98, 112, 147, 168, 181, 196, 294, 336, 343, 362, 392, 543, 588, 686, 724, 784, 1029, 1086, 1176, 1267, 1372, 1448, 2058, 2172, 2352, 2401, 2534, 2744, 2896, 3801, 4116, 4344, 4802, 5068, 5488, 7203, 7602, 8232, 8688, 8869, 9604, 10136, 14406, 15204, 16464, 17738, 19208, 20272, 26607, 28812, 30408, 35476, 38416, 53214, 57624, 60816, 62083, 70952, 106428, 115248, 124166, 141904, 186249, 212856, 248332, 372498, 425712, 434581, 496664, 744996, 869162, 993328, 1303743, 1489992, 1738324, 2607486, 2979984, 3476648, 5214972, 6953296, 10429944, 20859888]

約数ペア:

[(1, 20859888), (2, 10429944), (3, 6953296), (4, 5214972), (6, 3476648), (7, 2979984), (8, 2607486), (12, 1738324), (14, 1489992), (16, 1303743), (21, 993328), (24, 869162), (28, 744996), (42, 496664), (48, 434581), (49, 425712), (56, 372498), (84, 248332), (98, 212856), (112, 186249), (147, 141904), (168, 124166), (181, 115248), (196, 106428), (294, 70952), (336, 62083), (343, 60816), (362, 57624), (392, 53214), (543, 38416), (588, 35476), (686, 30408), (724, 28812), (784, 26607), (1029, 20272), (1086, 19208), (1176, 17738), (1267, 16464), (1372, 15204), (1448, 14406), (2058, 10136), (2172, 9604), (2352, 8869), (2401, 8688), (2534, 8232), (2744, 7602), (2896, 7203), (3801, 5488), (4116, 5068), (4344, 4802)]