68991993

素因数分解:

$3^4\times 7^1\times {\mathrm{271}}^1\times {\mathrm{449}}^1$

素因数の和:739

約数の個数: 40

約数和(自身を含む): 118483200

約数和(自身を除く): 49491207

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 271, 449, 567, 813, 1347, 1897, 2439, 3143, 4041, 5691, 7317, 9429, 12123, 17073, 21951, 28287, 36369, 51219, 84861, 121679, 153657, 254583, 365037, 851753, 1095111, 2555259, 3285333, 7665777, 9855999, 22997331, 68991993]

約数ペア:

[(1, 68991993), (3, 22997331), (7, 9855999), (9, 7665777), (21, 3285333), (27, 2555259), (63, 1095111), (81, 851753), (189, 365037), (271, 254583), (449, 153657), (567, 121679), (813, 84861), (1347, 51219), (1897, 36369), (2439, 28287), (3143, 21951), (4041, 17073), (5691, 12123), (7317, 9429)]