19869311

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 26915328

約数和(自身を除く): 7046017

約数列:

[1, 7, 11, 17, 43, 77, 119, 187, 301, 353, 473, 731, 1309, 2471, 3311, 3883, 5117, 6001, 8041, 15179, 27181, 42007, 56287, 66011, 106253, 166969, 258043, 462077, 1168783, 1806301, 2838473, 19869311]

約数ペア:

[(1, 19869311), (7, 2838473), (11, 1806301), (17, 1168783), (43, 462077), (77, 258043), (119, 166969), (187, 106253), (301, 66011), (353, 56287), (473, 42007), (731, 27181), (1309, 15179), (2471, 8041), (3311, 6001), (3883, 5117)]