21510812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{739}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 39782400

約数和(自身を除く): 18271588

約数列:

[1, 2, 4, 19, 38, 76, 383, 739, 766, 1478, 1532, 2956, 7277, 14041, 14554, 28082, 29108, 56164, 283037, 566074, 1132148, 5377703, 10755406, 21510812]

約数ペア:

[(1, 21510812), (2, 10755406), (4, 5377703), (19, 1132148), (38, 566074), (76, 283037), (383, 56164), (739, 29108), (766, 28082), (1478, 14554), (1532, 14041), (2956, 7277)]