21420804975

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{7719209}}^1$

素因数の和:7719259

約数の個数: 24

約数和(自身を含む): 36372917520

約数和(自身を除く): 14952112545

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 185, 555, 925, 2775, 7719209, 23157627, 38596045, 115788135, 192980225, 285610733, 578940675, 856832199, 1428053665, 4284160995, 7140268325, 21420804975]

約数ペア:

[(1, 21420804975), (3, 7140268325), (5, 4284160995), (15, 1428053665), (25, 856832199), (37, 578940675), (75, 285610733), (111, 192980225), (185, 115788135), (555, 38596045), (925, 23157627), (2775, 7719209)]