16885855

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 24330240

約数和(自身を除く): 7444385

約数列:

[1, 5, 7, 31, 35, 79, 155, 197, 217, 395, 553, 985, 1085, 1379, 2449, 2765, 6107, 6895, 12245, 15563, 17143, 30535, 42749, 77815, 85715, 108941, 213745, 482453, 544705, 2412265, 3377171, 16885855]

約数ペア:

[(1, 16885855), (5, 3377171), (7, 2412265), (31, 544705), (35, 482453), (79, 213745), (155, 108941), (197, 85715), (217, 77815), (395, 42749), (553, 30535), (985, 17143), (1085, 15563), (1379, 12245), (2449, 6895), (2765, 6107)]