20711201

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 24862464

約数和(自身を除く): 4151263

約数列:

[1, 7, 23, 161, 197, 653, 1379, 4531, 4571, 15019, 31717, 105133, 128641, 900487, 2958743, 20711201]

約数ペア:

[(1, 20711201), (7, 2958743), (23, 900487), (161, 128641), (197, 105133), (653, 31717), (1379, 15019), (4531, 4571)]