21640122

素因数分解:

$2^1\times 3^5\times 7^1\times {\mathrm{6361}}^1$

素因数の和:6385

約数の個数: 48

約数和(自身を含む): 55578432

約数和(自身を除く): 33938310

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 1134, 1701, 3402, 6361, 12722, 19083, 38166, 44527, 57249, 89054, 114498, 133581, 171747, 267162, 343494, 400743, 515241, 801486, 1030482, 1202229, 1545723, 2404458, 3091446, 3606687, 7213374, 10820061, 21640122]

約数ペア:

[(1, 21640122), (2, 10820061), (3, 7213374), (6, 3606687), (7, 3091446), (9, 2404458), (14, 1545723), (18, 1202229), (21, 1030482), (27, 801486), (42, 515241), (54, 400743), (63, 343494), (81, 267162), (126, 171747), (162, 133581), (189, 114498), (243, 89054), (378, 57249), (486, 44527), (567, 38166), (1134, 19083), (1701, 12722), (3402, 6361)]