21073120

素因数分解:

$2^5\times 5^1\times {\mathrm{131707}}^1$

素因数の和:131722

約数の個数: 24

約数和(自身を含む): 49785624

約数和(自身を除く): 28712504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131707, 263414, 526828, 658535, 1053656, 1317070, 2107312, 2634140, 4214624, 5268280, 10536560, 21073120]

約数ペア:

[(1, 21073120), (2, 10536560), (4, 5268280), (5, 4214624), (8, 2634140), (10, 2107312), (16, 1317070), (20, 1053656), (32, 658535), (40, 526828), (80, 263414), (160, 131707)]