18643845

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{313}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 34454592

約数和(自身を除く): 15810747

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 313, 361, 627, 939, 1045, 1083, 1565, 1805, 3135, 3443, 3971, 4695, 5415, 5947, 10329, 11913, 17215, 17841, 19855, 29735, 51645, 59565, 65417, 89205, 112993, 196251, 327085, 338979, 564965, 981255, 1242923, 1694895, 3728769, 6214615, 18643845]

約数ペア:

[(1, 18643845), (3, 6214615), (5, 3728769), (11, 1694895), (15, 1242923), (19, 981255), (33, 564965), (55, 338979), (57, 327085), (95, 196251), (165, 112993), (209, 89205), (285, 65417), (313, 59565), (361, 51645), (627, 29735), (939, 19855), (1045, 17841), (1083, 17215), (1565, 11913), (1805, 10329), (3135, 5947), (3443, 5415), (3971, 4695)]