31639209

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 49612800

約数和(自身を除く): 17973591

約数列:

[1, 3, 7, 21, 67, 113, 199, 201, 339, 469, 597, 791, 1393, 1407, 2373, 4179, 7571, 13333, 22487, 22713, 39999, 52997, 67461, 93331, 157409, 158991, 279993, 472227, 1506629, 4519887, 10546403, 31639209]

約数ペア:

[(1, 31639209), (3, 10546403), (7, 4519887), (21, 1506629), (67, 472227), (113, 279993), (199, 158991), (201, 157409), (339, 93331), (469, 67461), (597, 52997), (791, 39999), (1393, 22713), (1407, 22487), (2373, 13333), (4179, 7571)]