19918565583

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{180221}}^1$

素因数の和:180527

約数の個数: 32

約数和(自身を含む): 32065098240

約数和(自身を除く): 12146532657

約数列:

[1, 3, 7, 19, 21, 57, 133, 277, 399, 831, 1939, 5263, 5817, 15789, 36841, 110523, 180221, 540663, 1261547, 3424199, 3784641, 10272597, 23969393, 49921217, 71908179, 149763651, 349448519, 948503123, 1048345557, 2845509369, 6639521861, 19918565583]

約数ペア:

[(1, 19918565583), (3, 6639521861), (7, 2845509369), (19, 1048345557), (21, 948503123), (57, 349448519), (133, 149763651), (277, 71908179), (399, 49921217), (831, 23969393), (1939, 10272597), (5263, 3784641), (5817, 3424199), (15789, 1261547), (36841, 540663), (110523, 180221)]