221307788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{37663}}^1$

素因数の和:37793

約数の個数: 24

約数和(自身を含む): 420782208

約数和(自身を除く): 199474420

約数列:

[1, 2, 4, 13, 26, 52, 113, 226, 452, 1469, 2938, 5876, 37663, 75326, 150652, 489619, 979238, 1958476, 4255919, 8511838, 17023676, 55326947, 110653894, 221307788]

約数ペア:

[(1, 221307788), (2, 110653894), (4, 55326947), (13, 17023676), (26, 8511838), (52, 4255919), (113, 1958476), (226, 979238), (452, 489619), (1469, 150652), (2938, 75326), (5876, 37663)]