12201891

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 18665472

約数和(自身を除く): 6463581

約数列:

[1, 3, 13, 23, 39, 61, 69, 183, 223, 299, 669, 793, 897, 1403, 2379, 2899, 4209, 5129, 8697, 13603, 15387, 18239, 40809, 54717, 66677, 176839, 200031, 312869, 530517, 938607, 4067297, 12201891]

約数ペア:

[(1, 12201891), (3, 4067297), (13, 938607), (23, 530517), (39, 312869), (61, 200031), (69, 176839), (183, 66677), (223, 54717), (299, 40809), (669, 18239), (793, 15387), (897, 13603), (1403, 8697), (2379, 5129), (2899, 4209)]