21040488

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{383}}^1$

素因数の和:511

約数の個数: 96

約数和(自身を含む): 65894400

約数和(自身を除く): 44853912

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 109, 126, 168, 218, 252, 327, 383, 436, 504, 654, 763, 766, 872, 981, 1149, 1308, 1526, 1532, 1962, 2289, 2298, 2616, 2681, 3052, 3064, 3447, 3924, 4578, 4596, 5362, 6104, 6867, 6894, 7848, 8043, 9156, 9192, 10724, 13734, 13788, 16086, 18312, 21448, 24129, 27468, 27576, 32172, 41747, 48258, 54936, 64344, 83494, 96516, 125241, 166988, 193032, 250482, 292229, 333976, 375723, 500964, 584458, 751446, 876687, 1001928, 1168916, 1502892, 1753374, 2337832, 2630061, 3005784, 3506748, 5260122, 7013496, 10520244, 21040488]

約数ペア:

[(1, 21040488), (2, 10520244), (3, 7013496), (4, 5260122), (6, 3506748), (7, 3005784), (8, 2630061), (9, 2337832), (12, 1753374), (14, 1502892), (18, 1168916), (21, 1001928), (24, 876687), (28, 751446), (36, 584458), (42, 500964), (56, 375723), (63, 333976), (72, 292229), (84, 250482), (109, 193032), (126, 166988), (168, 125241), (218, 96516), (252, 83494), (327, 64344), (383, 54936), (436, 48258), (504, 41747), (654, 32172), (763, 27576), (766, 27468), (872, 24129), (981, 21448), (1149, 18312), (1308, 16086), (1526, 13788), (1532, 13734), (1962, 10724), (2289, 9192), (2298, 9156), (2616, 8043), (2681, 7848), (3052, 6894), (3064, 6867), (3447, 6104), (3924, 5362), (4578, 4596)]