21008535

素因数分解:

$3^1\times 5^1\times {\mathrm{877}}^1\times {\mathrm{1597}}^1$

素因数の和:2482

約数の個数: 16

約数和(自身を含む): 33673056

約数和(自身を除く): 12664521

約数列:

[1, 3, 5, 15, 877, 1597, 2631, 4385, 4791, 7985, 13155, 23955, 1400569, 4201707, 7002845, 21008535]

約数ペア:

[(1, 21008535), (3, 7002845), (5, 4201707), (15, 1400569), (877, 23955), (1597, 13155), (2631, 7985), (4385, 4791)]