21085385936

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9480839}}^1$

素因数の和:9480986

約数の個数: 20

約数和(自身を含む): 41146845600

約数和(自身を除く): 20061459664

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9480839, 18961678, 37923356, 75846712, 151693424, 1317836621, 2635673242, 5271346484, 10542692968, 21085385936]

約数ペア:

[(1, 21085385936), (2, 10542692968), (4, 5271346484), (8, 2635673242), (16, 1317836621), (139, 151693424), (278, 75846712), (556, 37923356), (1112, 18961678), (2224, 9480839)]