21618842

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:606

約数の個数: 32

約数和(自身を含む): 38691840

約数和(自身を除く): 17072998

約数列:

[1, 2, 7, 14, 31, 62, 109, 217, 218, 434, 457, 763, 914, 1526, 3199, 3379, 6398, 6758, 14167, 23653, 28334, 47306, 49813, 99169, 99626, 198338, 348691, 697382, 1544203, 3088406, 10809421, 21618842]

約数ペア:

[(1, 21618842), (2, 10809421), (7, 3088406), (14, 1544203), (31, 697382), (62, 348691), (109, 198338), (217, 99626), (218, 99169), (434, 49813), (457, 47306), (763, 28334), (914, 23653), (1526, 14167), (3199, 6758), (3379, 6398)]