20619989

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:476

約数の個数: 16

約数和(自身を含む): 23033472

約数和(自身を除く): 2413483

約数列:

[1, 13, 37, 163, 263, 481, 2119, 3419, 6031, 9731, 42869, 78403, 126503, 557297, 1586153, 20619989]

約数ペア:

[(1, 20619989), (13, 1586153), (37, 557297), (163, 126503), (263, 78403), (481, 42869), (2119, 9731), (3419, 6031)]