215689999

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{10477}}^1$

素因数の和:10674

約数の個数: 16

約数和(自身を含む): 262536768

約数和(自身を除く): 46846769

約数列:

[1, 7, 17, 119, 173, 1211, 2941, 10477, 20587, 73339, 178109, 1246763, 1812521, 12687647, 30812857, 215689999]

約数ペア:

[(1, 215689999), (7, 30812857), (17, 12687647), (119, 1812521), (173, 1246763), (1211, 178109), (2941, 73339), (10477, 20587)]