20001534

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 47949312

約数和(自身を除く): 27947778

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 61, 74, 111, 122, 183, 211, 222, 259, 366, 422, 427, 518, 633, 777, 854, 1266, 1281, 1477, 1554, 2257, 2562, 2954, 4431, 4514, 6771, 7807, 8862, 12871, 13542, 15614, 15799, 23421, 25742, 31598, 38613, 46842, 47397, 54649, 77226, 90097, 94794, 109298, 163947, 180194, 270291, 327894, 476227, 540582, 952454, 1428681, 2857362, 3333589, 6667178, 10000767, 20001534]

約数ペア:

[(1, 20001534), (2, 10000767), (3, 6667178), (6, 3333589), (7, 2857362), (14, 1428681), (21, 952454), (37, 540582), (42, 476227), (61, 327894), (74, 270291), (111, 180194), (122, 163947), (183, 109298), (211, 94794), (222, 90097), (259, 77226), (366, 54649), (422, 47397), (427, 46842), (518, 38613), (633, 31598), (777, 25742), (854, 23421), (1266, 15799), (1281, 15614), (1477, 13542), (1554, 12871), (2257, 8862), (2562, 7807), (2954, 6771), (4431, 4514)]