21059985

素因数分解:

$3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{6131}}^1$

素因数の和:6368

約数の個数: 16

約数和(自身を含む): 33848640

約数和(自身を除く): 12788655

約数列:

[1, 3, 5, 15, 229, 687, 1145, 3435, 6131, 18393, 30655, 91965, 1403999, 4211997, 7019995, 21059985]

約数ペア:

[(1, 21059985), (3, 7019995), (5, 4211997), (15, 1403999), (229, 91965), (687, 30655), (1145, 18393), (3435, 6131)]