19664565

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{27893}}^1$

素因数の和:27948

約数の個数: 16

約数和(自身を含む): 32133888

約数和(自身を除く): 12469323

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 27893, 83679, 139465, 418395, 1310971, 3932913, 6554855, 19664565]

約数ペア:

[(1, 19664565), (3, 6554855), (5, 3932913), (15, 1310971), (47, 418395), (141, 139465), (235, 83679), (705, 27893)]