21000948975

素因数分解:

$3^4\times 5^2\times {\mathrm{10370839}}^1$

素因数の和:10370861

約数の個数: 30

約数和(自身を含む): 38901020840

約数和(自身を除く): 17900071865

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10370839, 31112517, 51854195, 93337551, 155562585, 259270975, 280012653, 466687755, 777812925, 840037959, 1400063265, 2333438775, 4200189795, 7000316325, 21000948975]

約数ペア:

[(1, 21000948975), (3, 7000316325), (5, 4200189795), (9, 2333438775), (15, 1400063265), (25, 840037959), (27, 777812925), (45, 466687755), (75, 280012653), (81, 259270975), (135, 155562585), (225, 93337551), (405, 51854195), (675, 31112517), (2025, 10370839)]