21531220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{46807}}^1$

素因数の和:46839

約数の個数: 24

約数和(自身を含む): 47182464

約数和(自身を除く): 25651244

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 46807, 93614, 187228, 234035, 468070, 936140, 1076561, 2153122, 4306244, 5382805, 10765610, 21531220]

約数ペア:

[(1, 21531220), (2, 10765610), (4, 5382805), (5, 4306244), (10, 2153122), (20, 1076561), (23, 936140), (46, 468070), (92, 234035), (115, 187228), (230, 93614), (460, 46807)]