21085827

素因数分解:

$3^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{751}}^1$

素因数の和:959

約数の個数: 24

約数和(自身を含む): 32919552

約数和(自身を除く): 11833725

約数列:

[1, 3, 7, 21, 49, 147, 191, 573, 751, 1337, 2253, 4011, 5257, 9359, 15771, 28077, 36799, 110397, 143441, 430323, 1004087, 3012261, 7028609, 21085827]

約数ペア:

[(1, 21085827), (3, 7028609), (7, 3012261), (21, 1004087), (49, 430323), (147, 143441), (191, 110397), (573, 36799), (751, 28077), (1337, 15771), (2253, 9359), (4011, 5257)]