19915636

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1733}}^1$

素因数の和:1780

約数の個数: 36

約数和(自身を含む): 39982572

約数和(自身を除く): 20066936

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1733, 2873, 3466, 5746, 6932, 11492, 22529, 29461, 45058, 58922, 90116, 117844, 292877, 382993, 585754, 765986, 1171508, 1531972, 4978909, 9957818, 19915636]

約数ペア:

[(1, 19915636), (2, 9957818), (4, 4978909), (13, 1531972), (17, 1171508), (26, 765986), (34, 585754), (52, 382993), (68, 292877), (169, 117844), (221, 90116), (338, 58922), (442, 45058), (676, 29461), (884, 22529), (1733, 11492), (2873, 6932), (3466, 5746)]