18904904

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 36564480

約数和(自身を除く): 17659576

約数列:

[1, 2, 4, 8, 47, 94, 137, 188, 274, 367, 376, 548, 734, 1096, 1468, 2936, 6439, 12878, 17249, 25756, 34498, 50279, 51512, 68996, 100558, 137992, 201116, 402232, 2363113, 4726226, 9452452, 18904904]

約数ペア:

[(1, 18904904), (2, 9452452), (4, 4726226), (8, 2363113), (47, 402232), (94, 201116), (137, 137992), (188, 100558), (274, 68996), (367, 51512), (376, 50279), (548, 34498), (734, 25756), (1096, 17249), (1468, 12878), (2936, 6439)]