21871384

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2203}}^1$

素因数の和:2299

約数の個数: 32

約数和(自身を含む): 44035920

約数和(自身を除く): 22164536

約数列:

[1, 2, 4, 8, 17, 34, 68, 73, 136, 146, 292, 584, 1241, 2203, 2482, 4406, 4964, 8812, 9928, 17624, 37451, 74902, 149804, 160819, 299608, 321638, 643276, 1286552, 2733923, 5467846, 10935692, 21871384]

約数ペア:

[(1, 21871384), (2, 10935692), (4, 5467846), (8, 2733923), (17, 1286552), (34, 643276), (68, 321638), (73, 299608), (136, 160819), (146, 149804), (292, 74902), (584, 37451), (1241, 17624), (2203, 9928), (2482, 8812), (4406, 4964)]