21392560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38201}}^1$

素因数の和:38221

約数の個数: 40

約数和(自身を含む): 56844576

約数和(自身を除く): 35452016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38201, 76402, 152804, 191005, 267407, 305608, 382010, 534814, 611216, 764020, 1069628, 1337035, 1528040, 2139256, 2674070, 3056080, 4278512, 5348140, 10696280, 21392560]

約数ペア:

[(1, 21392560), (2, 10696280), (4, 5348140), (5, 4278512), (7, 3056080), (8, 2674070), (10, 2139256), (14, 1528040), (16, 1337035), (20, 1069628), (28, 764020), (35, 611216), (40, 534814), (56, 382010), (70, 305608), (80, 267407), (112, 191005), (140, 152804), (280, 76402), (560, 38201)]