21362042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 36832320

約数和(自身を除く): 15470278

約数列:

[1, 2, 13, 19, 26, 38, 83, 166, 247, 494, 521, 1042, 1079, 1577, 2158, 3154, 6773, 9899, 13546, 19798, 20501, 41002, 43243, 86486, 128687, 257374, 562159, 821617, 1124318, 1643234, 10681021, 21362042]

約数ペア:

[(1, 21362042), (2, 10681021), (13, 1643234), (19, 1124318), (26, 821617), (38, 562159), (83, 257374), (166, 128687), (247, 86486), (494, 43243), (521, 41002), (1042, 20501), (1079, 19798), (1577, 13546), (2158, 9899), (3154, 6773)]