12889821

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26687}}^1$

素因数の和:26720

約数の個数: 16

約数和(自身を含む): 20496384

約数和(自身を除く): 7606563

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 26687, 80061, 186809, 560427, 613801, 1841403, 4296607, 12889821]

約数ペア:

[(1, 12889821), (3, 4296607), (7, 1841403), (21, 613801), (23, 560427), (69, 186809), (161, 80061), (483, 26687)]