21131982

素因数分解:

$2^1\times 3^3\times {\mathrm{89}}^1\times {\mathrm{4397}}^1$

素因数の和:4497

約数の個数: 32

約数和(自身を含む): 47498400

約数和(自身を除く): 26366418

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 89, 178, 267, 534, 801, 1602, 2403, 4397, 4806, 8794, 13191, 26382, 39573, 79146, 118719, 237438, 391333, 782666, 1173999, 2347998, 3521997, 7043994, 10565991, 21131982]

約数ペア:

[(1, 21131982), (2, 10565991), (3, 7043994), (6, 3521997), (9, 2347998), (18, 1173999), (27, 782666), (54, 391333), (89, 237438), (178, 118719), (267, 79146), (534, 39573), (801, 26382), (1602, 13191), (2403, 8794), (4397, 4806)]