20175242997

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{53591}}^1$

素因数の和:53818

約数の個数: 48

約数和(自身を含む): 33871001472

約数和(自身を除く): 13695758475

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 197, 273, 591, 637, 1379, 1911, 2561, 4137, 7683, 9653, 17927, 28959, 53591, 53781, 125489, 160773, 375137, 376467, 696683, 1125411, 2090049, 2625959, 4876781, 7877877, 10557427, 14630343, 31672281, 34137467, 73901989, 102412401, 137246551, 221705967, 411739653, 517313923, 960725857, 1551941769, 2882177571, 6725080999, 20175242997]

約数ペア:

[(1, 20175242997), (3, 6725080999), (7, 2882177571), (13, 1551941769), (21, 960725857), (39, 517313923), (49, 411739653), (91, 221705967), (147, 137246551), (197, 102412401), (273, 73901989), (591, 34137467), (637, 31672281), (1379, 14630343), (1911, 10557427), (2561, 7877877), (4137, 4876781), (7683, 2625959), (9653, 2090049), (17927, 1125411), (28959, 696683), (53591, 376467), (53781, 375137), (125489, 160773)]