18772803

素因数分解:

$3^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 32443488

約数和(自身を除く): 13670685

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 113, 189, 293, 339, 567, 791, 879, 1017, 2051, 2373, 2637, 3051, 6153, 7119, 7911, 9153, 18459, 21357, 23733, 33109, 55377, 64071, 99327, 166131, 231763, 297981, 695289, 893943, 2085867, 2681829, 6257601, 18772803]

約数ペア:

[(1, 18772803), (3, 6257601), (7, 2681829), (9, 2085867), (21, 893943), (27, 695289), (63, 297981), (81, 231763), (113, 166131), (189, 99327), (293, 64071), (339, 55377), (567, 33109), (791, 23733), (879, 21357), (1017, 18459), (2051, 9153), (2373, 7911), (2637, 7119), (3051, 6153)]