21284568

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{12853}}^1$

素因数の和:12888

約数の個数: 48

約数和(自身を含む): 60156720

約数和(自身を除く): 38872152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656, 12853, 25706, 38559, 51412, 77118, 102824, 115677, 154236, 231354, 295619, 308472, 462708, 591238, 886857, 925416, 1182476, 1773714, 2364952, 2660571, 3547428, 5321142, 7094856, 10642284, 21284568]

約数ペア:

[(1, 21284568), (2, 10642284), (3, 7094856), (4, 5321142), (6, 3547428), (8, 2660571), (9, 2364952), (12, 1773714), (18, 1182476), (23, 925416), (24, 886857), (36, 591238), (46, 462708), (69, 308472), (72, 295619), (92, 231354), (138, 154236), (184, 115677), (207, 102824), (276, 77118), (414, 51412), (552, 38559), (828, 25706), (1656, 12853)]