21072184

素因数分解:

$2^3\times 7^1\times {\mathrm{571}}^1\times {\mathrm{659}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 45302400

約数和(自身を除く): 24230216

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 571, 659, 1142, 1318, 2284, 2636, 3997, 4568, 4613, 5272, 7994, 9226, 15988, 18452, 31976, 36904, 376289, 752578, 1505156, 2634023, 3010312, 5268046, 10536092, 21072184]

約数ペア:

[(1, 21072184), (2, 10536092), (4, 5268046), (7, 3010312), (8, 2634023), (14, 1505156), (28, 752578), (56, 376289), (571, 36904), (659, 31976), (1142, 18452), (1318, 15988), (2284, 9226), (2636, 7994), (3997, 5272), (4568, 4613)]