191890881

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 349427520

約数和(自身を除く): 157536639

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 67, 91, 117, 169, 201, 269, 273, 469, 507, 603, 807, 819, 871, 1183, 1407, 1521, 1883, 2421, 2613, 3497, 3549, 4221, 5649, 6097, 7839, 10491, 10647, 11323, 16947, 18023, 18291, 24479, 31473, 33969, 45461, 54069, 54873, 73437, 79261, 101907, 126161, 136383, 162207, 220311, 234299, 237783, 318227, 378483, 409149, 702897, 713349, 954681, 1135449, 1640093, 2108691, 2864043, 3045887, 4920279, 9137661, 14760837, 21321209, 27412983, 63963627, 191890881]

約数ペア:

[(1, 191890881), (3, 63963627), (7, 27412983), (9, 21321209), (13, 14760837), (21, 9137661), (39, 4920279), (63, 3045887), (67, 2864043), (91, 2108691), (117, 1640093), (169, 1135449), (201, 954681), (269, 713349), (273, 702897), (469, 409149), (507, 378483), (603, 318227), (807, 237783), (819, 234299), (871, 220311), (1183, 162207), (1407, 136383), (1521, 126161), (1883, 101907), (2421, 79261), (2613, 73437), (3497, 54873), (3549, 54069), (4221, 45461), (5649, 33969), (6097, 31473), (7839, 24479), (10491, 18291), (10647, 18023), (11323, 16947)]