21092369960

素因数分解:

$2^3\times 5^1\times {\mathrm{8861}}^1\times {\mathrm{59509}}^1$

素因数の和:68381

約数の個数: 32

約数和(自身を含む): 47463985800

約数和(自身を除く): 26371615840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 8861, 17722, 35444, 44305, 59509, 70888, 88610, 119018, 177220, 238036, 297545, 354440, 476072, 595090, 1190180, 2380360, 527309249, 1054618498, 2109236996, 2636546245, 4218473992, 5273092490, 10546184980, 21092369960]

約数ペア:

[(1, 21092369960), (2, 10546184980), (4, 5273092490), (5, 4218473992), (8, 2636546245), (10, 2109236996), (20, 1054618498), (40, 527309249), (8861, 2380360), (17722, 1190180), (35444, 595090), (44305, 476072), (59509, 354440), (70888, 297545), (88610, 238036), (119018, 177220)]