21299535

素因数分解:

$3^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{941}}^1$

素因数の和:1455

約数の個数: 24

約数和(自身を含む): 37031904

約数和(自身を除く): 15732369

約数列:

[1, 3, 5, 9, 15, 45, 503, 941, 1509, 2515, 2823, 4527, 4705, 7545, 8469, 14115, 22635, 42345, 473323, 1419969, 2366615, 4259907, 7099845, 21299535]

約数ペア:

[(1, 21299535), (3, 7099845), (5, 4259907), (9, 2366615), (15, 1419969), (45, 473323), (503, 42345), (941, 22635), (1509, 14115), (2515, 8469), (2823, 7545), (4527, 4705)]