21384506

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74771}}^1$

素因数の和:74797

約数の個数: 16

約数和(自身を含む): 37685088

約数和(自身を除く): 16300582

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74771, 149542, 822481, 972023, 1644962, 1944046, 10692253, 21384506]

約数ペア:

[(1, 21384506), (2, 10692253), (11, 1944046), (13, 1644962), (22, 972023), (26, 822481), (143, 149542), (286, 74771)]