18118568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2099}}^1$

素因数の和:2201

約数の個数: 32

約数和(自身を含む): 37044000

約数和(自身を除く): 18925432

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 332, 664, 1079, 2099, 2158, 4198, 4316, 8396, 8632, 16792, 27287, 54574, 109148, 174217, 218296, 348434, 696868, 1393736, 2264821, 4529642, 9059284, 18118568]

約数ペア:

[(1, 18118568), (2, 9059284), (4, 4529642), (8, 2264821), (13, 1393736), (26, 696868), (52, 348434), (83, 218296), (104, 174217), (166, 109148), (332, 54574), (664, 27287), (1079, 16792), (2099, 8632), (2158, 8396), (4198, 4316)]