21945976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2371}}^1$

素因数の和:2479

約数の個数: 32

約数和(自身を含む): 44830800

約数和(自身を除く): 22884824

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 356, 712, 1157, 2314, 2371, 4628, 4742, 9256, 9484, 18968, 30823, 61646, 123292, 211019, 246584, 422038, 844076, 1688152, 2743247, 5486494, 10972988, 21945976]

約数ペア:

[(1, 21945976), (2, 10972988), (4, 5486494), (8, 2743247), (13, 1688152), (26, 844076), (52, 422038), (89, 246584), (104, 211019), (178, 123292), (356, 61646), (712, 30823), (1157, 18968), (2314, 9484), (2371, 9256), (4628, 4742)]