12372021

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{8039}}^1$

素因数の和:8070

約数の個数: 20

約数和(自身を含む): 19456800

約数和(自身を除く): 7084779

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 8039, 24117, 72351, 152741, 217053, 458223, 651159, 1374669, 4124007, 12372021]

約数ペア:

[(1, 12372021), (3, 4124007), (9, 1374669), (19, 651159), (27, 458223), (57, 217053), (81, 152741), (171, 72351), (513, 24117), (1539, 8039)]