20397216

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:386

約数の個数: 96

約数和(自身を含む): 61931520

約数和(自身を除く): 41534304

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 127, 168, 224, 239, 254, 336, 381, 478, 508, 672, 717, 762, 889, 956, 1016, 1434, 1524, 1673, 1778, 1912, 2032, 2667, 2868, 3048, 3346, 3556, 3824, 4064, 5019, 5334, 5736, 6096, 6692, 7112, 7648, 10038, 10668, 11472, 12192, 13384, 14224, 20076, 21336, 22944, 26768, 28448, 30353, 40152, 42672, 53536, 60706, 80304, 85344, 91059, 121412, 160608, 182118, 212471, 242824, 364236, 424942, 485648, 637413, 728472, 849884, 971296, 1274826, 1456944, 1699768, 2549652, 2913888, 3399536, 5099304, 6799072, 10198608, 20397216]

約数ペア:

[(1, 20397216), (2, 10198608), (3, 6799072), (4, 5099304), (6, 3399536), (7, 2913888), (8, 2549652), (12, 1699768), (14, 1456944), (16, 1274826), (21, 971296), (24, 849884), (28, 728472), (32, 637413), (42, 485648), (48, 424942), (56, 364236), (84, 242824), (96, 212471), (112, 182118), (127, 160608), (168, 121412), (224, 91059), (239, 85344), (254, 80304), (336, 60706), (381, 53536), (478, 42672), (508, 40152), (672, 30353), (717, 28448), (762, 26768), (889, 22944), (956, 21336), (1016, 20076), (1434, 14224), (1524, 13384), (1673, 12192), (1778, 11472), (1912, 10668), (2032, 10038), (2667, 7648), (2868, 7112), (3048, 6692), (3346, 6096), (3556, 5736), (3824, 5334), (4064, 5019)]