20227979681

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1\times {\mathrm{10007}}^1$

素因数の和:10353

約数の個数: 32

約数和(自身を含む): 25264995840

約数和(自身を除く): 5037016159

約数列:

[1, 7, 13, 91, 97, 229, 679, 1261, 1603, 2977, 8827, 10007, 20839, 22213, 70049, 130091, 155491, 288769, 910637, 970679, 2021383, 2291603, 6794753, 12618827, 16041221, 29790839, 88331789, 208535873, 222285491, 1555998437, 2889711383, 20227979681]

約数ペア:

[(1, 20227979681), (7, 2889711383), (13, 1555998437), (91, 222285491), (97, 208535873), (229, 88331789), (679, 29790839), (1261, 16041221), (1603, 12618827), (2977, 6794753), (8827, 2291603), (10007, 2021383), (20839, 970679), (22213, 910637), (70049, 288769), (130091, 155491)]