20328651

素因数分解:

$3^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:95

約数の個数: 96

約数和(自身を含む): 39836160

約数和(自身を除く): 19507509

約数列:

[1, 3, 7, 9, 17, 19, 21, 27, 37, 51, 57, 63, 81, 111, 119, 133, 153, 171, 189, 243, 259, 323, 333, 357, 399, 459, 513, 567, 629, 703, 777, 969, 999, 1071, 1197, 1377, 1539, 1701, 1887, 2109, 2261, 2331, 2907, 2997, 3213, 3591, 4131, 4403, 4617, 4921, 5661, 6327, 6783, 6993, 8721, 8991, 9639, 10773, 11951, 13209, 14763, 16983, 18981, 20349, 20979, 26163, 28917, 32319, 35853, 39627, 44289, 50949, 56943, 61047, 62937, 78489, 83657, 107559, 118881, 132867, 152847, 170829, 183141, 250971, 322677, 356643, 398601, 549423, 752913, 968031, 1069929, 1195803, 2258739, 2904093, 6776217, 20328651]

約数ペア:

[(1, 20328651), (3, 6776217), (7, 2904093), (9, 2258739), (17, 1195803), (19, 1069929), (21, 968031), (27, 752913), (37, 549423), (51, 398601), (57, 356643), (63, 322677), (81, 250971), (111, 183141), (119, 170829), (133, 152847), (153, 132867), (171, 118881), (189, 107559), (243, 83657), (259, 78489), (323, 62937), (333, 61047), (357, 56943), (399, 50949), (459, 44289), (513, 39627), (567, 35853), (629, 32319), (703, 28917), (777, 26163), (969, 20979), (999, 20349), (1071, 18981), (1197, 16983), (1377, 14763), (1539, 13209), (1701, 11951), (1887, 10773), (2109, 9639), (2261, 8991), (2331, 8721), (2907, 6993), (2997, 6783), (3213, 6327), (3591, 5661), (4131, 4921), (4403, 4617)]