20784582

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12689}}^1$

素因数の和:12717

約数の個数: 48

約数和(自身を含む): 55429920

約数和(自身を除く): 34645338

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12689, 25378, 38067, 76134, 88823, 114201, 164957, 177646, 228402, 266469, 329914, 494871, 532938, 799407, 989742, 1154699, 1484613, 1598814, 2309398, 2969226, 3464097, 6928194, 10392291, 20784582]

約数ペア:

[(1, 20784582), (2, 10392291), (3, 6928194), (6, 3464097), (7, 2969226), (9, 2309398), (13, 1598814), (14, 1484613), (18, 1154699), (21, 989742), (26, 799407), (39, 532938), (42, 494871), (63, 329914), (78, 266469), (91, 228402), (117, 177646), (126, 164957), (182, 114201), (234, 88823), (273, 76134), (546, 38067), (819, 25378), (1638, 12689)]