21768572

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{809}}^1$

素因数の和:882

約数の個数: 36

約数和(自身を含む): 45042480

約数和(自身を除く): 23273908

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 809, 868, 961, 1618, 1922, 3236, 3844, 5663, 6727, 11326, 13454, 22652, 25079, 26908, 50158, 100316, 175553, 351106, 702212, 777449, 1554898, 3109796, 5442143, 10884286, 21768572]

約数ペア:

[(1, 21768572), (2, 10884286), (4, 5442143), (7, 3109796), (14, 1554898), (28, 777449), (31, 702212), (62, 351106), (124, 175553), (217, 100316), (434, 50158), (809, 26908), (868, 25079), (961, 22652), (1618, 13454), (1922, 11326), (3236, 6727), (3844, 5663)]