207971421

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{1327}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 336568320

約数和(自身を除く): 128596899

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 439, 1317, 1327, 3073, 3981, 7463, 9219, 9289, 22389, 22559, 27867, 52241, 67677, 156723, 157913, 473739, 582553, 1747659, 4077871, 9903401, 12233613, 29710203, 69323807, 207971421]

約数ペア:

[(1, 207971421), (3, 69323807), (7, 29710203), (17, 12233613), (21, 9903401), (51, 4077871), (119, 1747659), (357, 582553), (439, 473739), (1317, 157913), (1327, 156723), (3073, 67677), (3981, 52241), (7463, 27867), (9219, 22559), (9289, 22389)]