20196783

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:365

約数の個数: 40

約数和(自身を含む): 32443488

約数和(自身を除く): 12246705

約数列:

[1, 3, 9, 23, 27, 37, 69, 81, 111, 207, 293, 333, 621, 851, 879, 999, 1863, 2553, 2637, 2997, 6739, 7659, 7911, 10841, 20217, 22977, 23733, 32523, 60651, 68931, 97569, 181953, 249343, 292707, 545859, 748029, 878121, 2244087, 6732261, 20196783]

約数ペア:

[(1, 20196783), (3, 6732261), (9, 2244087), (23, 878121), (27, 748029), (37, 545859), (69, 292707), (81, 249343), (111, 181953), (207, 97569), (293, 68931), (333, 60651), (621, 32523), (851, 23733), (879, 22977), (999, 20217), (1863, 10841), (2553, 7911), (2637, 7659), (2997, 6739)]