18940707

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2473}}^1$

素因数の和:2539

約数の個数: 24

約数和(自身を含む): 29331744

約数和(自身を除く): 10391037

約数列:

[1, 3, 9, 23, 37, 69, 111, 207, 333, 851, 2473, 2553, 7419, 7659, 22257, 56879, 91501, 170637, 274503, 511911, 823509, 2104523, 6313569, 18940707]

約数ペア:

[(1, 18940707), (3, 6313569), (9, 2104523), (23, 823509), (37, 511911), (69, 274503), (111, 170637), (207, 91501), (333, 56879), (851, 22257), (2473, 7659), (2553, 7419)]