21840952

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 27188168

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 83, 127, 148, 166, 254, 259, 296, 332, 508, 518, 581, 664, 889, 1016, 1036, 1162, 1778, 2072, 2324, 3071, 3556, 4648, 4699, 6142, 7112, 9398, 10541, 12284, 18796, 21082, 21497, 24568, 32893, 37592, 42164, 42994, 65786, 73787, 84328, 85988, 131572, 147574, 171976, 263144, 295148, 390017, 590296, 780034, 1560068, 2730119, 3120136, 5460238, 10920476, 21840952]

約数ペア:

[(1, 21840952), (2, 10920476), (4, 5460238), (7, 3120136), (8, 2730119), (14, 1560068), (28, 780034), (37, 590296), (56, 390017), (74, 295148), (83, 263144), (127, 171976), (148, 147574), (166, 131572), (254, 85988), (259, 84328), (296, 73787), (332, 65786), (508, 42994), (518, 42164), (581, 37592), (664, 32893), (889, 24568), (1016, 21497), (1036, 21082), (1162, 18796), (1778, 12284), (2072, 10541), (2324, 9398), (3071, 7112), (3556, 6142), (4648, 4699)]