261640491

素因数分解:

$3^1\times 7^1\times {\mathrm{1607}}^1\times {\mathrm{7753}}^1$

素因数の和:9370

約数の個数: 16

約数和(自身を含む): 398989824

約数和(自身を除く): 137349333

約数列:

[1, 3, 7, 21, 1607, 4821, 7753, 11249, 23259, 33747, 54271, 162813, 12459071, 37377213, 87213497, 261640491]

約数ペア:

[(1, 261640491), (3, 87213497), (7, 37377213), (21, 12459071), (1607, 162813), (4821, 54271), (7753, 33747), (11249, 23259)]