2021621755

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{23671}}^1$

素因数の和:23755

約数の個数: 32

約数和(自身を含む): 2727014400

約数和(自身を除く): 705392645

約数列:

[1, 5, 19, 29, 31, 95, 145, 155, 551, 589, 899, 2755, 2945, 4495, 17081, 23671, 85405, 118355, 449749, 686459, 733801, 2248745, 3432295, 3669005, 13042721, 13942219, 21280229, 65213605, 69711095, 106401145, 404324351, 2021621755]

約数ペア:

[(1, 2021621755), (5, 404324351), (19, 106401145), (29, 69711095), (31, 65213605), (95, 21280229), (145, 13942219), (155, 13042721), (551, 3669005), (589, 3432295), (899, 2248745), (2755, 733801), (2945, 686459), (4495, 449749), (17081, 118355), (23671, 85405)]