21000388685

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{2459}}^1\times {\mathrm{89897}}^1$

素因数の和:92380

約数の個数: 16

約数和(自身を含む): 26537889600

約数和(自身を除く): 5537500915

約数列:

[1, 5, 19, 95, 2459, 12295, 46721, 89897, 233605, 449485, 1708043, 8540215, 221056723, 1105283615, 4200077737, 21000388685]

約数ペア:

[(1, 21000388685), (5, 4200077737), (19, 1105283615), (95, 221056723), (2459, 8540215), (12295, 1708043), (46721, 449485), (89897, 233605)]