71677991

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 92951040

約数和(自身を除く): 21273049

約数列:

[1, 7, 11, 37, 77, 139, 181, 259, 407, 973, 1267, 1529, 1991, 2849, 5143, 6697, 10703, 13937, 25159, 36001, 46879, 56573, 73667, 176113, 276749, 396011, 515669, 930883, 1937243, 6516181, 10239713, 71677991]

約数ペア:

[(1, 71677991), (7, 10239713), (11, 6516181), (37, 1937243), (77, 930883), (139, 515669), (181, 396011), (259, 276749), (407, 176113), (973, 73667), (1267, 56573), (1529, 46879), (1991, 36001), (2849, 25159), (5143, 13937), (6697, 10703)]