20658978

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{373}}^1$

素因数の和:579

約数の個数: 48

約数和(自身を含む): 47783736

約数和(自身を除く): 27124758

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 181, 306, 362, 373, 543, 746, 1086, 1119, 1629, 2238, 3077, 3258, 3357, 6154, 6341, 6714, 9231, 12682, 18462, 19023, 27693, 38046, 55386, 57069, 67513, 114138, 135026, 202539, 405078, 607617, 1147721, 1215234, 2295442, 3443163, 6886326, 10329489, 20658978]

約数ペア:

[(1, 20658978), (2, 10329489), (3, 6886326), (6, 3443163), (9, 2295442), (17, 1215234), (18, 1147721), (34, 607617), (51, 405078), (102, 202539), (153, 135026), (181, 114138), (306, 67513), (362, 57069), (373, 55386), (543, 38046), (746, 27693), (1086, 19023), (1119, 18462), (1629, 12682), (2238, 9231), (3077, 6714), (3258, 6341), (3357, 6154)]