16981419

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3659}}^1$

素因数の和:3699

約数の個数: 32

約数和(自身を含む): 29514240

約数和(自身を除く): 12532821

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 3659, 4641, 10977, 25613, 47567, 62203, 76839, 142701, 186609, 332969, 435421, 808639, 998907, 1306263, 2425917, 5660473, 16981419]

約数ペア:

[(1, 16981419), (3, 5660473), (7, 2425917), (13, 1306263), (17, 998907), (21, 808639), (39, 435421), (51, 332969), (91, 186609), (119, 142701), (221, 76839), (273, 62203), (357, 47567), (663, 25613), (1547, 10977), (3659, 4641)]