20443472

素因数分解:

$2^4\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1093}}^1$

素因数の和:1275

約数の個数: 40

約数和(自身を含む): 45580416

約数和(自身を除く): 25136944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 167, 334, 668, 1093, 1169, 1336, 2186, 2338, 2672, 4372, 4676, 7651, 8744, 9352, 15302, 17488, 18704, 30604, 61208, 122416, 182531, 365062, 730124, 1277717, 1460248, 2555434, 2920496, 5110868, 10221736, 20443472]

約数ペア:

[(1, 20443472), (2, 10221736), (4, 5110868), (7, 2920496), (8, 2555434), (14, 1460248), (16, 1277717), (28, 730124), (56, 365062), (112, 182531), (167, 122416), (334, 61208), (668, 30604), (1093, 18704), (1169, 17488), (1336, 15302), (2186, 9352), (2338, 8744), (2672, 7651), (4372, 4676)]