287121681

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{1013}}^1$

素因数の和:1446

約数の個数: 48

約数和(自身を含む): 518843520

約数和(自身を除く): 231721839

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 409, 693, 1013, 1227, 2863, 3039, 3681, 4499, 7091, 8589, 9117, 11143, 13497, 21273, 25767, 31493, 33429, 40491, 63819, 78001, 94479, 100287, 234003, 283437, 414317, 702009, 1242951, 2900219, 3728853, 4557487, 8700657, 13672461, 26101971, 31902409, 41017383, 95707227, 287121681]

約数ペア:

[(1, 287121681), (3, 95707227), (7, 41017383), (9, 31902409), (11, 26101971), (21, 13672461), (33, 8700657), (63, 4557487), (77, 3728853), (99, 2900219), (231, 1242951), (409, 702009), (693, 414317), (1013, 283437), (1227, 234003), (2863, 100287), (3039, 94479), (3681, 78001), (4499, 63819), (7091, 40491), (8589, 33429), (9117, 31493), (11143, 25767), (13497, 21273)]