20291658

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25327542

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 71, 109, 114, 138, 142, 213, 218, 327, 426, 437, 654, 874, 1311, 1349, 1633, 2071, 2507, 2622, 2698, 3266, 4047, 4142, 4899, 5014, 6213, 7521, 7739, 8094, 9798, 12426, 15042, 15478, 23217, 31027, 46434, 47633, 62054, 93081, 95266, 142899, 147041, 177997, 186162, 285798, 294082, 355994, 441123, 533991, 882246, 1067982, 3381943, 6763886, 10145829, 20291658]

約数ペア:

[(1, 20291658), (2, 10145829), (3, 6763886), (6, 3381943), (19, 1067982), (23, 882246), (38, 533991), (46, 441123), (57, 355994), (69, 294082), (71, 285798), (109, 186162), (114, 177997), (138, 147041), (142, 142899), (213, 95266), (218, 93081), (327, 62054), (426, 47633), (437, 46434), (654, 31027), (874, 23217), (1311, 15478), (1349, 15042), (1633, 12426), (2071, 9798), (2507, 8094), (2622, 7739), (2698, 7521), (3266, 6213), (4047, 5014), (4142, 4899)]