20500938

素因数分解:

$2^1\times 3^7\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 47625600

約数和(自身を除く): 27124662

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 81, 86, 109, 129, 162, 218, 243, 258, 327, 387, 486, 654, 729, 774, 981, 1161, 1458, 1962, 2187, 2322, 2943, 3483, 4374, 4687, 5886, 6966, 8829, 9374, 10449, 14061, 17658, 20898, 26487, 28122, 31347, 42183, 52974, 62694, 79461, 84366, 94041, 126549, 158922, 188082, 238383, 253098, 379647, 476766, 759294, 1138941, 2277882, 3416823, 6833646, 10250469, 20500938]

約数ペア:

[(1, 20500938), (2, 10250469), (3, 6833646), (6, 3416823), (9, 2277882), (18, 1138941), (27, 759294), (43, 476766), (54, 379647), (81, 253098), (86, 238383), (109, 188082), (129, 158922), (162, 126549), (218, 94041), (243, 84366), (258, 79461), (327, 62694), (387, 52974), (486, 42183), (654, 31347), (729, 28122), (774, 26487), (981, 20898), (1161, 17658), (1458, 14061), (1962, 10449), (2187, 9374), (2322, 8829), (2943, 6966), (3483, 5886), (4374, 4687)]