21100395

素因数分解:

$3^1\times 5^1\times {\mathrm{293}}^1\times {\mathrm{4801}}^1$

素因数の和:5102

約数の個数: 16

約数和(自身を含む): 33882912

約数和(自身を除く): 12782517

約数列:

[1, 3, 5, 15, 293, 879, 1465, 4395, 4801, 14403, 24005, 72015, 1406693, 4220079, 7033465, 21100395]

約数ペア:

[(1, 21100395), (3, 7033465), (5, 4220079), (15, 1406693), (293, 72015), (879, 24005), (1465, 14403), (4395, 4801)]