20782395

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 37488672

約数和(自身を除く): 16706277

約数列:

[1, 3, 5, 9, 15, 45, 61, 67, 113, 183, 201, 305, 335, 339, 549, 565, 603, 915, 1005, 1017, 1695, 2745, 3015, 4087, 5085, 6893, 7571, 12261, 20435, 20679, 22713, 34465, 36783, 37855, 61305, 62037, 68139, 103395, 113565, 183915, 310185, 340695, 461831, 1385493, 2309155, 4156479, 6927465, 20782395]

約数ペア:

[(1, 20782395), (3, 6927465), (5, 4156479), (9, 2309155), (15, 1385493), (45, 461831), (61, 340695), (67, 310185), (113, 183915), (183, 113565), (201, 103395), (305, 68139), (335, 62037), (339, 61305), (549, 37855), (565, 36783), (603, 34465), (915, 22713), (1005, 20679), (1017, 20435), (1695, 12261), (2745, 7571), (3015, 6893), (4087, 5085)]