21296813165

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{27481}}^1$

素因数の和:27653

約数の個数: 32

約数和(自身を含む): 27068670720

約数和(自身を除く): 5771857555

約数列:

[1, 5, 37, 59, 71, 185, 295, 355, 2183, 2627, 4189, 10915, 13135, 20945, 27481, 137405, 154993, 774965, 1016797, 1621379, 1951151, 5083985, 8106895, 9755755, 59991023, 72192587, 115117909, 299955115, 360962935, 575589545, 4259362633, 21296813165]

約数ペア:

[(1, 21296813165), (5, 4259362633), (37, 575589545), (59, 360962935), (71, 299955115), (185, 115117909), (295, 72192587), (355, 59991023), (2183, 9755755), (2627, 8106895), (4189, 5083985), (10915, 1951151), (13135, 1621379), (20945, 1016797), (27481, 774965), (137405, 154993)]