19797921

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{15383}}^1$

素因数の和:15413

約数の個数: 24

約数和(自身を含む): 33598656

約数和(自身を除く): 13800735

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 15383, 46149, 138447, 169213, 199979, 507639, 599937, 1522917, 1799811, 2199769, 6599307, 19797921]

約数ペア:

[(1, 19797921), (3, 6599307), (9, 2199769), (11, 1799811), (13, 1522917), (33, 599937), (39, 507639), (99, 199979), (117, 169213), (143, 138447), (429, 46149), (1287, 15383)]