281028447

素因数分解:

$3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{5569}}^1$

素因数の和:5677

約数の個数: 40

約数和(自身を含む): 485258400

約数和(自身を除く): 204229953

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 89, 189, 267, 567, 623, 801, 1869, 2403, 5569, 5607, 7209, 16707, 16821, 38983, 50121, 50463, 116949, 150363, 350847, 451089, 495641, 1052541, 1486923, 3157623, 3469487, 4460769, 10408461, 13382307, 31225383, 40146921, 93676149, 281028447]

約数ペア:

[(1, 281028447), (3, 93676149), (7, 40146921), (9, 31225383), (21, 13382307), (27, 10408461), (63, 4460769), (81, 3469487), (89, 3157623), (189, 1486923), (267, 1052541), (567, 495641), (623, 451089), (801, 350847), (1869, 150363), (2403, 116949), (5569, 50463), (5607, 50121), (7209, 38983), (16707, 16821)]