21466242

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 55123200

約数和(自身を除く): 33656958

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 109, 126, 189, 218, 327, 378, 521, 654, 763, 981, 1042, 1526, 1563, 1962, 2289, 2943, 3126, 3647, 4578, 4689, 5886, 6867, 7294, 9378, 10941, 13734, 14067, 20601, 21882, 28134, 32823, 41202, 56789, 65646, 98469, 113578, 170367, 196938, 340734, 397523, 511101, 795046, 1022202, 1192569, 1533303, 2385138, 3066606, 3577707, 7155414, 10733121, 21466242]

約数ペア:

[(1, 21466242), (2, 10733121), (3, 7155414), (6, 3577707), (7, 3066606), (9, 2385138), (14, 1533303), (18, 1192569), (21, 1022202), (27, 795046), (42, 511101), (54, 397523), (63, 340734), (109, 196938), (126, 170367), (189, 113578), (218, 98469), (327, 65646), (378, 56789), (521, 41202), (654, 32823), (763, 28134), (981, 21882), (1042, 20601), (1526, 14067), (1563, 13734), (1962, 10941), (2289, 9378), (2943, 7294), (3126, 6867), (3647, 5886), (4578, 4689)]