19769841

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 15873039

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 101, 117, 239, 273, 303, 707, 717, 819, 909, 1313, 1673, 2121, 2151, 3107, 3939, 5019, 6363, 9191, 9321, 11817, 15057, 21749, 24139, 27573, 27963, 65247, 72417, 82719, 168973, 195741, 217251, 313807, 506919, 941421, 1520757, 2196649, 2824263, 6589947, 19769841]

約数ペア:

[(1, 19769841), (3, 6589947), (7, 2824263), (9, 2196649), (13, 1520757), (21, 941421), (39, 506919), (63, 313807), (91, 217251), (101, 195741), (117, 168973), (239, 82719), (273, 72417), (303, 65247), (707, 27963), (717, 27573), (819, 24139), (909, 21749), (1313, 15057), (1673, 11817), (2121, 9321), (2151, 9191), (3107, 6363), (3939, 5019)]