21490596

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{3491}}^1$

素因数の和:3526

約数の個数: 60

約数和(自身を含む): 59154480

約数和(自身を除く): 37663884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 81, 108, 114, 162, 171, 228, 324, 342, 513, 684, 1026, 1539, 2052, 3078, 3491, 6156, 6982, 10473, 13964, 20946, 31419, 41892, 62838, 66329, 94257, 125676, 132658, 188514, 198987, 265316, 282771, 377028, 397974, 565542, 596961, 795948, 1131084, 1193922, 1790883, 2387844, 3581766, 5372649, 7163532, 10745298, 21490596]

約数ペア:

[(1, 21490596), (2, 10745298), (3, 7163532), (4, 5372649), (6, 3581766), (9, 2387844), (12, 1790883), (18, 1193922), (19, 1131084), (27, 795948), (36, 596961), (38, 565542), (54, 397974), (57, 377028), (76, 282771), (81, 265316), (108, 198987), (114, 188514), (162, 132658), (171, 125676), (228, 94257), (324, 66329), (342, 62838), (513, 41892), (684, 31419), (1026, 20946), (1539, 13964), (2052, 10473), (3078, 6982), (3491, 6156)]