18219818979

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{281131}}^1$

素因数の和:281535

約数の個数: 24

約数和(自身を含む): 27775841600

約数和(自身を除く): 9556022621

約数列:

[1, 3, 9, 19, 57, 171, 379, 1137, 3411, 7201, 21603, 64809, 281131, 843393, 2530179, 5341489, 16024467, 48073401, 106548649, 319645947, 958937841, 2024424331, 6073272993, 18219818979]

約数ペア:

[(1, 18219818979), (3, 6073272993), (9, 2024424331), (19, 958937841), (57, 319645947), (171, 106548649), (379, 48073401), (1137, 16024467), (3411, 5341489), (7201, 2530179), (21603, 843393), (64809, 281131)]