21850240

素因数分解:

$2^7\times 5^1\times {\mathrm{34141}}^1$

素因数の和:34160

約数の個数: 32

約数和(自身を含む): 52237260

約数和(自身を除く): 30387020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 34141, 68282, 136564, 170705, 273128, 341410, 546256, 682820, 1092512, 1365640, 2185024, 2731280, 4370048, 5462560, 10925120, 21850240]

約数ペア:

[(1, 21850240), (2, 10925120), (4, 5462560), (5, 4370048), (8, 2731280), (10, 2185024), (16, 1365640), (20, 1092512), (32, 682820), (40, 546256), (64, 341410), (80, 273128), (128, 170705), (160, 136564), (320, 68282), (640, 34141)]