221988955

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1\times {\mathrm{991}}^1$

素因数の和:1698

約数の個数: 16

約数和(自身を含む): 270839808

約数和(自身を除く): 48850853

約数列:

[1, 5, 71, 355, 631, 991, 3155, 4955, 44801, 70361, 224005, 351805, 625321, 3126605, 44397791, 221988955]

約数ペア:

[(1, 221988955), (5, 44397791), (71, 3126605), (355, 625321), (631, 351805), (991, 224005), (3155, 70361), (4955, 44801)]