13155725

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{4349}}^1$

素因数の和:4381

約数の個数: 18

約数和(自身を含む): 17935050

約数和(自身を除く): 4779325

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 4349, 21745, 47839, 108725, 239195, 526229, 1195975, 2631145, 13155725]

約数ペア:

[(1, 13155725), (5, 2631145), (11, 1195975), (25, 526229), (55, 239195), (121, 108725), (275, 47839), (605, 21745), (3025, 4349)]