21605435

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{1367}}^1$

素因数の和:1510

約数の個数: 16

約数和(自身を含む): 27086400

約数和(自身を除く): 5480965

約数列:

[1, 5, 29, 109, 145, 545, 1367, 3161, 6835, 15805, 39643, 149003, 198215, 745015, 4321087, 21605435]

約数ペア:

[(1, 21605435), (5, 4321087), (29, 745015), (109, 198215), (145, 149003), (545, 39643), (1367, 15805), (3161, 6835)]