21387576

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2087}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 62138880

約数和(自身を除く): 40751304

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 61, 84, 122, 168, 183, 244, 366, 427, 488, 732, 854, 1281, 1464, 1708, 2087, 2562, 3416, 4174, 5124, 6261, 8348, 10248, 12522, 14609, 16696, 25044, 29218, 43827, 50088, 58436, 87654, 116872, 127307, 175308, 254614, 350616, 381921, 509228, 763842, 891149, 1018456, 1527684, 1782298, 2673447, 3055368, 3564596, 5346894, 7129192, 10693788, 21387576]

約数ペア:

[(1, 21387576), (2, 10693788), (3, 7129192), (4, 5346894), (6, 3564596), (7, 3055368), (8, 2673447), (12, 1782298), (14, 1527684), (21, 1018456), (24, 891149), (28, 763842), (42, 509228), (56, 381921), (61, 350616), (84, 254614), (122, 175308), (168, 127307), (183, 116872), (244, 87654), (366, 58436), (427, 50088), (488, 43827), (732, 29218), (854, 25044), (1281, 16696), (1464, 14609), (1708, 12522), (2087, 10248), (2562, 8348), (3416, 6261), (4174, 5124)]