18764703

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 30191616

約数和(自身を除く): 11426913

約数列:

[1, 3, 9, 27, 31, 47, 53, 81, 93, 141, 159, 243, 279, 423, 477, 837, 1269, 1431, 1457, 1643, 2491, 2511, 3807, 4293, 4371, 4929, 7473, 7533, 11421, 12879, 13113, 14787, 22419, 39339, 44361, 67257, 77221, 118017, 133083, 201771, 231663, 354051, 399249, 605313, 694989, 2084967, 6254901, 18764703]

約数ペア:

[(1, 18764703), (3, 6254901), (9, 2084967), (27, 694989), (31, 605313), (47, 399249), (53, 354051), (81, 231663), (93, 201771), (141, 133083), (159, 118017), (243, 77221), (279, 67257), (423, 44361), (477, 39339), (837, 22419), (1269, 14787), (1431, 13113), (1457, 12879), (1643, 11421), (2491, 7533), (2511, 7473), (3807, 4929), (4293, 4371)]