8442042

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 20736000

約数和(自身を除く): 12293958

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 71, 114, 133, 142, 149, 213, 266, 298, 399, 426, 447, 497, 798, 894, 994, 1043, 1349, 1491, 2086, 2698, 2831, 2982, 3129, 4047, 5662, 6258, 8094, 8493, 9443, 10579, 16986, 18886, 19817, 21158, 28329, 31737, 39634, 56658, 59451, 63474, 74053, 118902, 148106, 201001, 222159, 402002, 444318, 603003, 1206006, 1407007, 2814014, 4221021, 8442042]

約数ペア:

[(1, 8442042), (2, 4221021), (3, 2814014), (6, 1407007), (7, 1206006), (14, 603003), (19, 444318), (21, 402002), (38, 222159), (42, 201001), (57, 148106), (71, 118902), (114, 74053), (133, 63474), (142, 59451), (149, 56658), (213, 39634), (266, 31737), (298, 28329), (399, 21158), (426, 19817), (447, 18886), (497, 16986), (798, 10579), (894, 9443), (994, 8493), (1043, 8094), (1349, 6258), (1491, 5662), (2086, 4047), (2698, 3129), (2831, 2982)]