21765982

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1741}}^1$

素因数の和:1816

約数の個数: 32

約数和(自身を含む): 40135680

約数和(自身を除く): 18369698

約数列:

[1, 2, 7, 14, 19, 38, 47, 94, 133, 266, 329, 658, 893, 1741, 1786, 3482, 6251, 12187, 12502, 24374, 33079, 66158, 81827, 163654, 231553, 463106, 572789, 1145578, 1554713, 3109426, 10882991, 21765982]

約数ペア:

[(1, 21765982), (2, 10882991), (7, 3109426), (14, 1554713), (19, 1145578), (38, 572789), (47, 463106), (94, 231553), (133, 163654), (266, 81827), (329, 66158), (658, 33079), (893, 24374), (1741, 12502), (1786, 12187), (3482, 6251)]