18556722

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 43868160

約数和(自身を除く): 25311438

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 67, 69, 134, 138, 201, 207, 223, 402, 414, 446, 603, 621, 669, 1206, 1242, 1338, 1541, 1809, 2007, 3082, 3618, 4014, 4623, 5129, 6021, 9246, 10258, 12042, 13869, 14941, 15387, 27738, 29882, 30774, 41607, 44823, 46161, 83214, 89646, 92322, 134469, 138483, 268938, 276966, 343643, 403407, 687286, 806814, 1030929, 2061858, 3092787, 6185574, 9278361, 18556722]

約数ペア:

[(1, 18556722), (2, 9278361), (3, 6185574), (6, 3092787), (9, 2061858), (18, 1030929), (23, 806814), (27, 687286), (46, 403407), (54, 343643), (67, 276966), (69, 268938), (134, 138483), (138, 134469), (201, 92322), (207, 89646), (223, 83214), (402, 46161), (414, 44823), (446, 41607), (603, 30774), (621, 29882), (669, 27738), (1206, 15387), (1242, 14941), (1338, 13869), (1541, 12042), (1809, 10258), (2007, 9246), (3082, 6021), (3618, 5129), (4014, 4623)]