19180557

素因数分解:

$3^4\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:156

約数の個数: 60

約数和(自身を含む): 33473440

約数和(自身を除く): 14292883

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 103, 121, 171, 209, 297, 309, 363, 513, 627, 891, 927, 1089, 1133, 1539, 1881, 1957, 2299, 2781, 3267, 3399, 5643, 5871, 6897, 8343, 9801, 10197, 12463, 16929, 17613, 20691, 21527, 30591, 37389, 52839, 62073, 64581, 91773, 112167, 158517, 186219, 193743, 236797, 336501, 581229, 710391, 1009503, 1743687, 2131173, 6393519, 19180557]

約数ペア:

[(1, 19180557), (3, 6393519), (9, 2131173), (11, 1743687), (19, 1009503), (27, 710391), (33, 581229), (57, 336501), (81, 236797), (99, 193743), (103, 186219), (121, 158517), (171, 112167), (209, 91773), (297, 64581), (309, 62073), (363, 52839), (513, 37389), (627, 30591), (891, 21527), (927, 20691), (1089, 17613), (1133, 16929), (1539, 12463), (1881, 10197), (1957, 9801), (2299, 8343), (2781, 6897), (3267, 5871), (3399, 5643)]