201921405

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{274723}}^1$

素因数の和:274745

約数の個数: 24

約数和(自身を含む): 375822432

約数和(自身を除く): 173901027

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 274723, 824169, 1373615, 1923061, 4120845, 5769183, 9615305, 13461427, 28845915, 40384281, 67307135, 201921405]

約数ペア:

[(1, 201921405), (3, 67307135), (5, 40384281), (7, 28845915), (15, 13461427), (21, 9615305), (35, 5769183), (49, 4120845), (105, 1923061), (147, 1373615), (245, 824169), (735, 274723)]