18393879

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 28998144

約数和(自身を除く): 10604265

約数列:

[1, 3, 7, 21, 61, 83, 173, 183, 249, 427, 519, 581, 1211, 1281, 1743, 3633, 5063, 10553, 14359, 15189, 31659, 35441, 43077, 73871, 100513, 106323, 221613, 301539, 875899, 2627697, 6131293, 18393879]

約数ペア:

[(1, 18393879), (3, 6131293), (7, 2627697), (21, 875899), (61, 301539), (83, 221613), (173, 106323), (183, 100513), (249, 73871), (427, 43077), (519, 35441), (581, 31659), (1211, 15189), (1281, 14359), (1743, 10553), (3633, 5063)]