21226856

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4259}}^1$

素因数の和:4361

約数の個数: 32

約数和(自身を含む): 46008000

約数和(自身を除く): 24781144

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4259, 4984, 8518, 17036, 29813, 34072, 59626, 119252, 238504, 379051, 758102, 1516204, 2653357, 3032408, 5306714, 10613428, 21226856]

約数ペア:

[(1, 21226856), (2, 10613428), (4, 5306714), (7, 3032408), (8, 2653357), (14, 1516204), (28, 758102), (56, 379051), (89, 238504), (178, 119252), (356, 59626), (623, 34072), (712, 29813), (1246, 17036), (2492, 8518), (4259, 4984)]