21247088

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18191}}^1$

素因数の和:18272

約数の個数: 20

約数和(自身を含む): 41732448

約数和(自身を除く): 20485360

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18191, 36382, 72764, 145528, 291056, 1327943, 2655886, 5311772, 10623544, 21247088]

約数ペア:

[(1, 21247088), (2, 10623544), (4, 5311772), (8, 2655886), (16, 1327943), (73, 291056), (146, 145528), (292, 72764), (584, 36382), (1168, 18191)]