21741685

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 9304715

約数列:

[1, 5, 7, 35, 41, 109, 139, 205, 287, 545, 695, 763, 973, 1435, 3815, 4469, 4865, 5699, 15151, 22345, 28495, 31283, 39893, 75755, 106057, 156415, 199465, 530285, 621191, 3105955, 4348337, 21741685]

約数ペア:

[(1, 21741685), (5, 4348337), (7, 3105955), (35, 621191), (41, 530285), (109, 199465), (139, 156415), (205, 106057), (287, 75755), (545, 39893), (695, 31283), (763, 28495), (973, 22345), (1435, 15151), (3815, 5699), (4469, 4865)]