2187195

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3391}}^1$

素因数の和:3442

約数の個数: 16

約数和(自身を含む): 3581952

約数和(自身を除く): 1394757

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 3391, 10173, 16955, 50865, 145813, 437439, 729065, 2187195]

約数ペア:

[(1, 2187195), (3, 729065), (5, 437439), (15, 145813), (43, 50865), (129, 16955), (215, 10173), (645, 3391)]