21877208

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{883}}^1$

素因数の和:1071

約数の個数: 32

約数和(自身を含む): 43492800

約数和(自身を除く): 21615592

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 163, 326, 652, 883, 1304, 1766, 3097, 3532, 6194, 7064, 12388, 16777, 24776, 33554, 67108, 134216, 143929, 287858, 575716, 1151432, 2734651, 5469302, 10938604, 21877208]

約数ペア:

[(1, 21877208), (2, 10938604), (4, 5469302), (8, 2734651), (19, 1151432), (38, 575716), (76, 287858), (152, 143929), (163, 134216), (326, 67108), (652, 33554), (883, 24776), (1304, 16777), (1766, 12388), (3097, 7064), (3532, 6194)]