19801098

素因数分解:

$2^1\times 3^9\times {\mathrm{503}}^1$

素因数の和:532

約数の個数: 40

約数和(自身を含む): 44640288

約数和(自身を除く): 24839190

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 503, 729, 1006, 1458, 1509, 2187, 3018, 4374, 4527, 6561, 9054, 13122, 13581, 19683, 27162, 39366, 40743, 81486, 122229, 244458, 366687, 733374, 1100061, 2200122, 3300183, 6600366, 9900549, 19801098]

約数ペア:

[(1, 19801098), (2, 9900549), (3, 6600366), (6, 3300183), (9, 2200122), (18, 1100061), (27, 733374), (54, 366687), (81, 244458), (162, 122229), (243, 81486), (486, 40743), (503, 39366), (729, 27162), (1006, 19683), (1458, 13581), (1509, 13122), (2187, 9054), (3018, 6561), (4374, 4527)]