21071912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{883}}^1$

素因数の和:1065

約数の個数: 32

約数和(自身を含む): 41901600

約数和(自身を除く): 20829688

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 157, 314, 628, 883, 1256, 1766, 2983, 3532, 5966, 7064, 11932, 16777, 23864, 33554, 67108, 134216, 138631, 277262, 554524, 1109048, 2633989, 5267978, 10535956, 21071912]

約数ペア:

[(1, 21071912), (2, 10535956), (4, 5267978), (8, 2633989), (19, 1109048), (38, 554524), (76, 277262), (152, 138631), (157, 134216), (314, 67108), (628, 33554), (883, 23864), (1256, 16777), (1766, 11932), (2983, 7064), (3532, 5966)]