21787416

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:469

約数の個数: 96

約数和(自身を含む): 68140800

約数和(自身を除く): 46353384

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 139, 168, 252, 278, 311, 417, 504, 556, 622, 834, 933, 973, 1112, 1244, 1251, 1668, 1866, 1946, 2177, 2488, 2502, 2799, 2919, 3336, 3732, 3892, 4354, 5004, 5598, 5838, 6531, 7464, 7784, 8708, 8757, 10008, 11196, 11676, 13062, 17416, 17514, 19593, 22392, 23352, 26124, 35028, 39186, 43229, 52248, 70056, 78372, 86458, 129687, 156744, 172916, 259374, 302603, 345832, 389061, 518748, 605206, 778122, 907809, 1037496, 1210412, 1556244, 1815618, 2420824, 2723427, 3112488, 3631236, 5446854, 7262472, 10893708, 21787416]

約数ペア:

[(1, 21787416), (2, 10893708), (3, 7262472), (4, 5446854), (6, 3631236), (7, 3112488), (8, 2723427), (9, 2420824), (12, 1815618), (14, 1556244), (18, 1210412), (21, 1037496), (24, 907809), (28, 778122), (36, 605206), (42, 518748), (56, 389061), (63, 345832), (72, 302603), (84, 259374), (126, 172916), (139, 156744), (168, 129687), (252, 86458), (278, 78372), (311, 70056), (417, 52248), (504, 43229), (556, 39186), (622, 35028), (834, 26124), (933, 23352), (973, 22392), (1112, 19593), (1244, 17514), (1251, 17416), (1668, 13062), (1866, 11676), (1946, 11196), (2177, 10008), (2488, 8757), (2502, 8708), (2799, 7784), (2919, 7464), (3336, 6531), (3732, 5838), (3892, 5598), (4354, 5004)]