28547148

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19991}}^1$

素因数の和:20022

約数の個数: 48

約数和(自身を含む): 80607744

約数和(自身を除く): 52060596

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714, 1428, 19991, 39982, 59973, 79964, 119946, 139937, 239892, 279874, 339847, 419811, 559748, 679694, 839622, 1019541, 1359388, 1679244, 2039082, 2378929, 4078164, 4757858, 7136787, 9515716, 14273574, 28547148]

約数ペア:

[(1, 28547148), (2, 14273574), (3, 9515716), (4, 7136787), (6, 4757858), (7, 4078164), (12, 2378929), (14, 2039082), (17, 1679244), (21, 1359388), (28, 1019541), (34, 839622), (42, 679694), (51, 559748), (68, 419811), (84, 339847), (102, 279874), (119, 239892), (204, 139937), (238, 119946), (357, 79964), (476, 59973), (714, 39982), (1428, 19991)]