38781743

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 57480192

約数和(自身を除く): 18698449

約数列:

[1, 7, 11, 13, 17, 43, 53, 77, 91, 119, 143, 187, 221, 301, 371, 473, 559, 583, 689, 731, 901, 1001, 1309, 1547, 2279, 2431, 3311, 3913, 4081, 4823, 5117, 6149, 6307, 7579, 8041, 9503, 9911, 11713, 15953, 17017, 25069, 29627, 38743, 43043, 53053, 56287, 66521, 69377, 81991, 104533, 128843, 175483, 207389, 271201, 325897, 426173, 503659, 731731, 901901, 2281279, 2983211, 3525613, 5540249, 38781743]

約数ペア:

[(1, 38781743), (7, 5540249), (11, 3525613), (13, 2983211), (17, 2281279), (43, 901901), (53, 731731), (77, 503659), (91, 426173), (119, 325897), (143, 271201), (187, 207389), (221, 175483), (301, 128843), (371, 104533), (473, 81991), (559, 69377), (583, 66521), (689, 56287), (731, 53053), (901, 43043), (1001, 38743), (1309, 29627), (1547, 25069), (2279, 17017), (2431, 15953), (3311, 11713), (3913, 9911), (4081, 9503), (4823, 8041), (5117, 7579), (6149, 6307)]