18613784

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5449}}^1$

素因数の和:5523

約数の個数: 32

約数和(自身を含む): 40548000

約数和(自身を除く): 21934216

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 5449, 10898, 21796, 38143, 43592, 76286, 152572, 305144, 332389, 664778, 1329556, 2326723, 2659112, 4653446, 9306892, 18613784]

約数ペア:

[(1, 18613784), (2, 9306892), (4, 4653446), (7, 2659112), (8, 2326723), (14, 1329556), (28, 664778), (56, 332389), (61, 305144), (122, 152572), (244, 76286), (427, 43592), (488, 38143), (854, 21796), (1708, 10898), (3416, 5449)]