16643991

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1487}}^1$

素因数の和:1551

約数の個数: 32

約数和(自身を含む): 27998208

約数和(自身を除く): 11354217

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1487, 1599, 3731, 4461, 10409, 11193, 19331, 31227, 57993, 60967, 135317, 182901, 405951, 426769, 792571, 1280307, 2377713, 5547997, 16643991]

約数ペア:

[(1, 16643991), (3, 5547997), (7, 2377713), (13, 1280307), (21, 792571), (39, 426769), (41, 405951), (91, 182901), (123, 135317), (273, 60967), (287, 57993), (533, 31227), (861, 19331), (1487, 11193), (1599, 10409), (3731, 4461)]