21572691

素因数分解:

$3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1453}}^1$

素因数の和:1571

約数の個数: 24

約数和(自身を含む): 33814224

約数和(自身を除く): 12241533

約数列:

[1, 3, 7, 21, 49, 101, 147, 303, 707, 1453, 2121, 4359, 4949, 10171, 14847, 30513, 71197, 146753, 213591, 440259, 1027271, 3081813, 7190897, 21572691]

約数ペア:

[(1, 21572691), (3, 7190897), (7, 3081813), (21, 1027271), (49, 440259), (101, 213591), (147, 146753), (303, 71197), (707, 30513), (1453, 14847), (2121, 10171), (4359, 4949)]