16221940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{16553}}^1$

素因数の和:16576

約数の個数: 36

約数和(自身を含む): 39630276

約数和(自身を除く): 23408336

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 16553, 33106, 66212, 82765, 115871, 165530, 231742, 331060, 463484, 579355, 811097, 1158710, 1622194, 2317420, 3244388, 4055485, 8110970, 16221940]

約数ペア:

[(1, 16221940), (2, 8110970), (4, 4055485), (5, 3244388), (7, 2317420), (10, 1622194), (14, 1158710), (20, 811097), (28, 579355), (35, 463484), (49, 331060), (70, 231742), (98, 165530), (140, 115871), (196, 82765), (245, 66212), (490, 33106), (980, 16553)]