21496568

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{601}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 42910560

約数和(自身を除く): 21413992

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 263, 526, 601, 1052, 1202, 2104, 2404, 4471, 4808, 8942, 10217, 17884, 20434, 35768, 40868, 81736, 158063, 316126, 632252, 1264504, 2687071, 5374142, 10748284, 21496568]

約数ペア:

[(1, 21496568), (2, 10748284), (4, 5374142), (8, 2687071), (17, 1264504), (34, 632252), (68, 316126), (136, 158063), (263, 81736), (526, 40868), (601, 35768), (1052, 20434), (1202, 17884), (2104, 10217), (2404, 8942), (4471, 4808)]