19752516

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{761}}^1$

素因数の和:881

約数の個数: 72

約数和(自身を含む): 57692544

約数和(自身を除く): 37940028

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 103, 126, 206, 252, 309, 412, 618, 721, 761, 927, 1236, 1442, 1522, 1854, 2163, 2283, 2884, 3044, 3708, 4326, 4566, 5327, 6489, 6849, 8652, 9132, 10654, 12978, 13698, 15981, 21308, 25956, 27396, 31962, 47943, 63924, 78383, 95886, 156766, 191772, 235149, 313532, 470298, 548681, 705447, 940596, 1097362, 1410894, 1646043, 2194724, 2821788, 3292086, 4938129, 6584172, 9876258, 19752516]

約数ペア:

[(1, 19752516), (2, 9876258), (3, 6584172), (4, 4938129), (6, 3292086), (7, 2821788), (9, 2194724), (12, 1646043), (14, 1410894), (18, 1097362), (21, 940596), (28, 705447), (36, 548681), (42, 470298), (63, 313532), (84, 235149), (103, 191772), (126, 156766), (206, 95886), (252, 78383), (309, 63924), (412, 47943), (618, 31962), (721, 27396), (761, 25956), (927, 21308), (1236, 15981), (1442, 13698), (1522, 12978), (1854, 10654), (2163, 9132), (2283, 8652), (2884, 6849), (3044, 6489), (3708, 5327), (4326, 4566)]