280729911

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{29641}}^1$

素因数の和:29703

約数の個数: 32

約数和(自身を含む): 478066176

約数和(自身を除く): 197336265

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 123, 231, 287, 451, 861, 1353, 3157, 9471, 29641, 88923, 207487, 326051, 622461, 978153, 1215281, 2282357, 3645843, 6847071, 8506967, 13368091, 25520901, 40104273, 93576637, 280729911]

約数ペア:

[(1, 280729911), (3, 93576637), (7, 40104273), (11, 25520901), (21, 13368091), (33, 8506967), (41, 6847071), (77, 3645843), (123, 2282357), (231, 1215281), (287, 978153), (451, 622461), (861, 326051), (1353, 207487), (3157, 88923), (9471, 29641)]