19226848

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:299

約数の個数: 48

約数和(自身を含む): 39417840

約数和(自身を除く): 20190992

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 89, 157, 172, 178, 314, 344, 356, 628, 688, 712, 1256, 1376, 1424, 2512, 2848, 3827, 5024, 6751, 7654, 13502, 13973, 15308, 27004, 27946, 30616, 54008, 55892, 61232, 108016, 111784, 122464, 216032, 223568, 447136, 600839, 1201678, 2403356, 4806712, 9613424, 19226848]

約数ペア:

[(1, 19226848), (2, 9613424), (4, 4806712), (8, 2403356), (16, 1201678), (32, 600839), (43, 447136), (86, 223568), (89, 216032), (157, 122464), (172, 111784), (178, 108016), (314, 61232), (344, 55892), (356, 54008), (628, 30616), (688, 27946), (712, 27004), (1256, 15308), (1376, 13973), (1424, 13502), (2512, 7654), (2848, 6751), (3827, 5024)]