21804705

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37273}}^1$

素因数の和:37297

約数の個数: 24

約数和(自身を含む): 40703208

約数和(自身を除く): 18898503

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 37273, 111819, 186365, 335457, 484549, 559095, 1453647, 1677285, 2422745, 4360941, 7268235, 21804705]

約数ペア:

[(1, 21804705), (3, 7268235), (5, 4360941), (9, 2422745), (13, 1677285), (15, 1453647), (39, 559095), (45, 484549), (65, 335457), (117, 186365), (195, 111819), (585, 37273)]