7881951

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 13248000

約数和(自身を除く): 5366049

約数列:

[1, 3, 7, 11, 21, 33, 77, 149, 229, 231, 447, 687, 1043, 1603, 1639, 2519, 3129, 4809, 4917, 7557, 11473, 17633, 34121, 34419, 52899, 102363, 238847, 375331, 716541, 1125993, 2627317, 7881951]

約数ペア:

[(1, 7881951), (3, 2627317), (7, 1125993), (11, 716541), (21, 375331), (33, 238847), (77, 102363), (149, 52899), (229, 34419), (231, 34121), (447, 17633), (687, 11473), (1043, 7557), (1603, 4917), (1639, 4809), (2519, 3129)]