20154672009

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{11897}}^1\times {\mathrm{9907}}^1$

素因数の和:21829

約数の個数: 24

約数和(自身を含む): 30650199840

約数和(自身を除く): 10495527831

約数列:

[1, 3, 9, 19, 57, 171, 9907, 11897, 29721, 35691, 89163, 107073, 188233, 226043, 564699, 678129, 1694097, 2034387, 117863579, 353590737, 1060772211, 2239408001, 6718224003, 20154672009]

約数ペア:

[(1, 20154672009), (3, 6718224003), (9, 2239408001), (19, 1060772211), (57, 353590737), (171, 117863579), (9907, 2034387), (11897, 1694097), (29721, 678129), (35691, 564699), (89163, 226043), (107073, 188233)]