19577668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 39412800

約数和(自身を除く): 19835132

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 67, 116, 134, 229, 268, 319, 458, 638, 737, 916, 1276, 1474, 1943, 2519, 2948, 3886, 5038, 6641, 7772, 10076, 13282, 15343, 21373, 26564, 30686, 42746, 61372, 73051, 85492, 146102, 168773, 292204, 337546, 444947, 675092, 889894, 1779788, 4894417, 9788834, 19577668]

約数ペア:

[(1, 19577668), (2, 9788834), (4, 4894417), (11, 1779788), (22, 889894), (29, 675092), (44, 444947), (58, 337546), (67, 292204), (116, 168773), (134, 146102), (229, 85492), (268, 73051), (319, 61372), (458, 42746), (638, 30686), (737, 26564), (916, 21373), (1276, 15343), (1474, 13282), (1943, 10076), (2519, 7772), (2948, 6641), (3886, 5038)]