21376352

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 43872192

約数和(自身を除く): 22495840

約数列:

[1, 2, 4, 8, 16, 32, 47, 61, 94, 122, 188, 233, 244, 376, 466, 488, 752, 932, 976, 1504, 1864, 1952, 2867, 3728, 5734, 7456, 10951, 11468, 14213, 21902, 22936, 28426, 43804, 45872, 56852, 87608, 91744, 113704, 175216, 227408, 350432, 454816, 668011, 1336022, 2672044, 5344088, 10688176, 21376352]

約数ペア:

[(1, 21376352), (2, 10688176), (4, 5344088), (8, 2672044), (16, 1336022), (32, 668011), (47, 454816), (61, 350432), (94, 227408), (122, 175216), (188, 113704), (233, 91744), (244, 87608), (376, 56852), (466, 45872), (488, 43804), (752, 28426), (932, 22936), (976, 21902), (1504, 14213), (1864, 11468), (1952, 10951), (2867, 7456), (3728, 5734)]