21471856

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4079}}^1$

素因数の和:4141

約数の個数: 40

約数和(自身を含む): 48568320

約数和(自身を除く): 27096464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 4079, 5264, 8158, 16316, 28553, 32632, 57106, 65264, 114212, 191713, 228424, 383426, 456848, 766852, 1341991, 1533704, 2683982, 3067408, 5367964, 10735928, 21471856]

約数ペア:

[(1, 21471856), (2, 10735928), (4, 5367964), (7, 3067408), (8, 2683982), (14, 1533704), (16, 1341991), (28, 766852), (47, 456848), (56, 383426), (94, 228424), (112, 191713), (188, 114212), (329, 65264), (376, 57106), (658, 32632), (752, 28553), (1316, 16316), (2632, 8158), (4079, 5264)]