21100000015

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{8941}}^1\times {\mathrm{20521}}^1$

素因数の和:29490

約数の個数: 16

約数和(自身を含む): 26425112256

約数和(自身を除く): 5325112241

約数列:

[1, 5, 23, 115, 8941, 20521, 44705, 102605, 205643, 471983, 1028215, 2359915, 183478261, 917391305, 4220000003, 21100000015]

約数ペア:

[(1, 21100000015), (5, 4220000003), (23, 917391305), (115, 183478261), (8941, 2359915), (20521, 1028215), (44705, 471983), (102605, 205643)]