20445551

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{151}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 25419264

約数和(自身を除く): 4973713

約数列:

[1, 7, 23, 29, 151, 161, 203, 667, 841, 1057, 3473, 4379, 4669, 5887, 19343, 24311, 30653, 100717, 126991, 135401, 705019, 888937, 2920793, 20445551]

約数ペア:

[(1, 20445551), (7, 2920793), (23, 888937), (29, 705019), (151, 135401), (161, 126991), (203, 100717), (667, 30653), (841, 24311), (1057, 19343), (3473, 5887), (4379, 4669)]