21146008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1601}}^1$

素因数の和:1747

約数の個数: 32

約数和(自身を含む): 43061760

約数和(自身を除く): 21915752

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1601, 1651, 3202, 3302, 6404, 6604, 12808, 13208, 20813, 41626, 83252, 166504, 203327, 406654, 813308, 1626616, 2643251, 5286502, 10573004, 21146008]

約数ペア:

[(1, 21146008), (2, 10573004), (4, 5286502), (8, 2643251), (13, 1626616), (26, 813308), (52, 406654), (104, 203327), (127, 166504), (254, 83252), (508, 41626), (1016, 20813), (1601, 13208), (1651, 12808), (3202, 6604), (3302, 6404)]