20401887

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:959

約数の個数: 32

約数和(自身を含む): 32223744

約数和(自身を除く): 11821857

約数列:

[1, 3, 11, 17, 33, 41, 51, 123, 187, 451, 561, 697, 887, 1353, 2091, 2661, 7667, 9757, 15079, 23001, 29271, 36367, 45237, 109101, 165869, 400037, 497607, 618239, 1200111, 1854717, 6800629, 20401887]

約数ペア:

[(1, 20401887), (3, 6800629), (11, 1854717), (17, 1200111), (33, 618239), (41, 497607), (51, 400037), (123, 165869), (187, 109101), (451, 45237), (561, 36367), (697, 29271), (887, 23001), (1353, 15079), (2091, 9757), (2661, 7667)]