21067872

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 64012032

約数和(自身を除く): 42944160

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 107, 112, 168, 214, 224, 293, 321, 336, 428, 586, 642, 672, 749, 856, 879, 1172, 1284, 1498, 1712, 1758, 2051, 2247, 2344, 2568, 2996, 3424, 3516, 4102, 4494, 4688, 5136, 5992, 6153, 7032, 8204, 8988, 9376, 10272, 11984, 12306, 14064, 16408, 17976, 23968, 24612, 28128, 31351, 32816, 35952, 49224, 62702, 65632, 71904, 94053, 98448, 125404, 188106, 196896, 219457, 250808, 376212, 438914, 501616, 658371, 752424, 877828, 1003232, 1316742, 1504848, 1755656, 2633484, 3009696, 3511312, 5266968, 7022624, 10533936, 21067872]

約数ペア:

[(1, 21067872), (2, 10533936), (3, 7022624), (4, 5266968), (6, 3511312), (7, 3009696), (8, 2633484), (12, 1755656), (14, 1504848), (16, 1316742), (21, 1003232), (24, 877828), (28, 752424), (32, 658371), (42, 501616), (48, 438914), (56, 376212), (84, 250808), (96, 219457), (107, 196896), (112, 188106), (168, 125404), (214, 98448), (224, 94053), (293, 71904), (321, 65632), (336, 62702), (428, 49224), (586, 35952), (642, 32816), (672, 31351), (749, 28128), (856, 24612), (879, 23968), (1172, 17976), (1284, 16408), (1498, 14064), (1712, 12306), (1758, 11984), (2051, 10272), (2247, 9376), (2344, 8988), (2568, 8204), (2996, 7032), (3424, 6153), (3516, 5992), (4102, 5136), (4494, 4688)]