18947916

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{40487}}^1$

素因数の和:40510

約数の個数: 36

約数和(自身を含む): 51581712

約数和(自身を除く): 32633796

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 40487, 80974, 121461, 161948, 242922, 364383, 485844, 526331, 728766, 1052662, 1457532, 1578993, 2105324, 3157986, 4736979, 6315972, 9473958, 18947916]

約数ペア:

[(1, 18947916), (2, 9473958), (3, 6315972), (4, 4736979), (6, 3157986), (9, 2105324), (12, 1578993), (13, 1457532), (18, 1052662), (26, 728766), (36, 526331), (39, 485844), (52, 364383), (78, 242922), (117, 161948), (156, 121461), (234, 80974), (468, 40487)]