21707025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{15233}}^1$

素因数の和:15265

約数の個数: 24

約数和(自身を含む): 37780320

約数和(自身を除く): 16073295

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 15233, 45699, 76165, 228495, 289427, 380825, 868281, 1142475, 1447135, 4341405, 7235675, 21707025]

約数ペア:

[(1, 21707025), (3, 7235675), (5, 4341405), (15, 1447135), (19, 1142475), (25, 868281), (57, 380825), (75, 289427), (95, 228495), (285, 76165), (475, 45699), (1425, 15233)]