21031852

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{499}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 37926000

約数和(自身を除く): 16894148

約数列:

[1, 2, 4, 41, 82, 164, 257, 499, 514, 998, 1028, 1996, 10537, 20459, 21074, 40918, 42148, 81836, 128243, 256486, 512972, 5257963, 10515926, 21031852]

約数ペア:

[(1, 21031852), (2, 10515926), (4, 5257963), (41, 512972), (82, 256486), (164, 128243), (257, 81836), (499, 42148), (514, 40918), (998, 21074), (1028, 20459), (1996, 10537)]