21239244

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{3491}}^1$

素因数の和:3527

約数の個数: 54

約数和(自身を含む): 58152276

約数和(自身を除く): 36913032

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 169, 234, 338, 468, 507, 676, 1014, 1521, 2028, 3042, 3491, 6084, 6982, 10473, 13964, 20946, 31419, 41892, 45383, 62838, 90766, 125676, 136149, 181532, 272298, 408447, 544596, 589979, 816894, 1179958, 1633788, 1769937, 2359916, 3539874, 5309811, 7079748, 10619622, 21239244]

約数ペア:

[(1, 21239244), (2, 10619622), (3, 7079748), (4, 5309811), (6, 3539874), (9, 2359916), (12, 1769937), (13, 1633788), (18, 1179958), (26, 816894), (36, 589979), (39, 544596), (52, 408447), (78, 272298), (117, 181532), (156, 136149), (169, 125676), (234, 90766), (338, 62838), (468, 45383), (507, 41892), (676, 31419), (1014, 20946), (1521, 13964), (2028, 10473), (3042, 6982), (3491, 6084)]