18964894

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 32822496

約数和(自身を除く): 13857602

約数列:

[1, 2, 13, 17, 26, 34, 107, 214, 221, 401, 442, 802, 1391, 1819, 2782, 3638, 5213, 6817, 10426, 13634, 23647, 42907, 47294, 85814, 88621, 177242, 557791, 729419, 1115582, 1458838, 9482447, 18964894]

約数ペア:

[(1, 18964894), (2, 9482447), (13, 1458838), (17, 1115582), (26, 729419), (34, 557791), (107, 177242), (214, 88621), (221, 85814), (401, 47294), (442, 42907), (802, 23647), (1391, 13634), (1819, 10426), (2782, 6817), (3638, 5213)]