201213105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1\times {\mathrm{1231}}^1$

素因数の和:1897

約数の個数: 32

約数和(自身を含む): 341687808

約数和(自身を除く): 140474703

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 641, 1231, 1923, 3205, 3693, 6155, 9615, 10897, 18465, 20927, 32691, 54485, 62781, 104635, 163455, 313905, 789071, 2367213, 3945355, 11836065, 13414207, 40242621, 67071035, 201213105]

約数ペア:

[(1, 201213105), (3, 67071035), (5, 40242621), (15, 13414207), (17, 11836065), (51, 3945355), (85, 2367213), (255, 789071), (641, 313905), (1231, 163455), (1923, 104635), (3205, 62781), (3693, 54485), (6155, 32691), (9615, 20927), (10897, 18465)]