21697809

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{269}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13138671

約数列:

[1, 3, 7, 21, 23, 69, 161, 167, 269, 483, 501, 807, 1169, 1883, 3507, 3841, 5649, 6187, 11523, 18561, 26887, 43309, 44923, 80661, 129927, 134769, 314461, 943383, 1033229, 3099687, 7232603, 21697809]

約数ペア:

[(1, 21697809), (3, 7232603), (7, 3099687), (21, 1033229), (23, 943383), (69, 314461), (161, 134769), (167, 129927), (269, 80661), (483, 44923), (501, 43309), (807, 26887), (1169, 18561), (1883, 11523), (3507, 6187), (3841, 5649)]