20965714

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1249}}^1$

素因数の和:1378

約数の個数: 32

約数和(自身を含む): 39600000

約数和(自身を除く): 18634286

約数列:

[1, 2, 7, 11, 14, 22, 77, 109, 154, 218, 763, 1199, 1249, 1526, 2398, 2498, 8393, 8743, 13739, 16786, 17486, 27478, 96173, 136141, 192346, 272282, 952987, 1497551, 1905974, 2995102, 10482857, 20965714]

約数ペア:

[(1, 20965714), (2, 10482857), (7, 2995102), (11, 1905974), (14, 1497551), (22, 952987), (77, 272282), (109, 192346), (154, 136141), (218, 96173), (763, 27478), (1199, 17486), (1249, 16786), (1526, 13739), (2398, 8743), (2498, 8393)]