21000871398

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1175729}}^1$

素因数の和:1175976

約数の個数: 32

約数和(自身を含む): 45430207200

約数和(自身を除く): 24429335802

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 229, 458, 687, 1374, 2977, 5954, 8931, 17862, 1175729, 2351458, 3527187, 7054374, 15284477, 30568954, 45853431, 91706862, 269241941, 538483882, 807725823, 1615451646, 3500145233, 7000290466, 10500435699, 21000871398]

約数ペア:

[(1, 21000871398), (2, 10500435699), (3, 7000290466), (6, 3500145233), (13, 1615451646), (26, 807725823), (39, 538483882), (78, 269241941), (229, 91706862), (458, 45853431), (687, 30568954), (1374, 15284477), (2977, 7054374), (5954, 3527187), (8931, 2351458), (17862, 1175729)]