19289564

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 40513536

約数和(自身を除く): 21223972

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 71, 124, 142, 217, 284, 313, 434, 497, 626, 868, 994, 1252, 1988, 2191, 2201, 4382, 4402, 8764, 8804, 9703, 15407, 19406, 22223, 30814, 38812, 44446, 61628, 67921, 88892, 135842, 155561, 271684, 311122, 622244, 688913, 1377826, 2755652, 4822391, 9644782, 19289564]

約数ペア:

[(1, 19289564), (2, 9644782), (4, 4822391), (7, 2755652), (14, 1377826), (28, 688913), (31, 622244), (62, 311122), (71, 271684), (124, 155561), (142, 135842), (217, 88892), (284, 67921), (313, 61628), (434, 44446), (497, 38812), (626, 30814), (868, 22223), (994, 19406), (1252, 15407), (1988, 9703), (2191, 8804), (2201, 8764), (4382, 4402)]