20580516

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{51971}}^1$

素因数の和:51992

約数の個数: 36

約数和(自身を含む): 56753424

約数和(自身を除く): 36172908

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 51971, 103942, 155913, 207884, 311826, 467739, 571681, 623652, 935478, 1143362, 1715043, 1870956, 2286724, 3430086, 5145129, 6860172, 10290258, 20580516]

約数ペア:

[(1, 20580516), (2, 10290258), (3, 6860172), (4, 5145129), (6, 3430086), (9, 2286724), (11, 1870956), (12, 1715043), (18, 1143362), (22, 935478), (33, 623652), (36, 571681), (44, 467739), (66, 311826), (99, 207884), (132, 155913), (198, 103942), (396, 51971)]