21491408

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28579}}^1$

素因数の和:28634

約数の個数: 20

約数和(自身を含む): 42527040

約数和(自身を除く): 21035632

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28579, 57158, 114316, 228632, 457264, 1343213, 2686426, 5372852, 10745704, 21491408]

約数ペア:

[(1, 21491408), (2, 10745704), (4, 5372852), (8, 2686426), (16, 1343213), (47, 457264), (94, 228632), (188, 114316), (376, 57158), (752, 28579)]