19771713

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{487}}^1$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 30907968

約数和(自身を除く): 11136255

約数列:

[1, 3, 9, 13, 39, 117, 347, 487, 1041, 1461, 3123, 4383, 4511, 6331, 13533, 18993, 40599, 56979, 168989, 506967, 1520901, 2196857, 6590571, 19771713]

約数ペア:

[(1, 19771713), (3, 6590571), (9, 2196857), (13, 1520901), (39, 506967), (117, 168989), (347, 56979), (487, 40599), (1041, 18993), (1461, 13533), (3123, 6331), (4383, 4511)]