18413811

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:127

約数の個数: 56

約数和(自身を含む): 31216080

約数和(自身を除く): 12802269

約数列:

[1, 3, 9, 13, 27, 29, 39, 67, 81, 87, 117, 201, 243, 261, 351, 377, 603, 729, 783, 871, 1053, 1131, 1809, 1943, 2349, 2613, 3159, 3393, 5427, 5829, 7047, 7839, 9477, 10179, 16281, 17487, 21141, 23517, 25259, 30537, 48843, 52461, 70551, 75777, 91611, 157383, 211653, 227331, 274833, 472149, 634959, 681993, 1416447, 2045979, 6137937, 18413811]

約数ペア:

[(1, 18413811), (3, 6137937), (9, 2045979), (13, 1416447), (27, 681993), (29, 634959), (39, 472149), (67, 274833), (81, 227331), (87, 211653), (117, 157383), (201, 91611), (243, 75777), (261, 70551), (351, 52461), (377, 48843), (603, 30537), (729, 25259), (783, 23517), (871, 21141), (1053, 17487), (1131, 16281), (1809, 10179), (1943, 9477), (2349, 7839), (2613, 7047), (3159, 5829), (3393, 5427)]