201321905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{76403}}^1$

素因数の和:76456

約数の個数: 16

約数和(自身を含む): 264052224

約数和(自身を除く): 62730319

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 76403, 382015, 1298851, 2368493, 6494255, 11842465, 40264381, 201321905]

約数ペア:

[(1, 201321905), (5, 40264381), (17, 11842465), (31, 6494255), (85, 2368493), (155, 1298851), (527, 382015), (2635, 76403)]