21951536

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{443}}^1$

素因数の和:633

約数の個数: 40

約数和(自身を含む): 45145920

約数和(自身を除く): 23194384

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 163, 304, 326, 443, 652, 886, 1304, 1772, 2608, 3097, 3544, 6194, 7088, 8417, 12388, 16834, 24776, 33668, 49552, 67336, 72209, 134672, 144418, 288836, 577672, 1155344, 1371971, 2743942, 5487884, 10975768, 21951536]

約数ペア:

[(1, 21951536), (2, 10975768), (4, 5487884), (8, 2743942), (16, 1371971), (19, 1155344), (38, 577672), (76, 288836), (152, 144418), (163, 134672), (304, 72209), (326, 67336), (443, 49552), (652, 33668), (886, 24776), (1304, 16834), (1772, 12388), (2608, 8417), (3097, 7088), (3544, 6194)]