20660321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 24550176

約数和(自身を除く): 3889855

約数列:

[1, 11, 17, 67, 97, 187, 289, 737, 1067, 1139, 1649, 3179, 6499, 12529, 18139, 19363, 28033, 71489, 110483, 212993, 308363, 1215313, 1878211, 20660321]

約数ペア:

[(1, 20660321), (11, 1878211), (17, 1215313), (67, 308363), (97, 212993), (187, 110483), (289, 71489), (737, 28033), (1067, 19363), (1139, 18139), (1649, 12529), (3179, 6499)]