21093475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1583}}^1$

素因数の和:1647

約数の個数: 24

約数和(自身を含む): 28873152

約数和(自身を除く): 7779677

約数列:

[1, 5, 13, 25, 41, 65, 205, 325, 533, 1025, 1583, 2665, 7915, 13325, 20579, 39575, 64903, 102895, 324515, 514475, 843739, 1622575, 4218695, 21093475]

約数ペア:

[(1, 21093475), (5, 4218695), (13, 1622575), (25, 843739), (41, 514475), (65, 324515), (205, 102895), (325, 64903), (533, 39575), (1025, 20579), (1583, 13325), (2665, 7915)]