19542537

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 34774272

約数和(自身を除く): 15231735

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 71, 119, 153, 213, 257, 357, 497, 639, 771, 1071, 1207, 1491, 1799, 2313, 3621, 4369, 4473, 5397, 8449, 10863, 13107, 16191, 18247, 25347, 30583, 39321, 54741, 76041, 91749, 127729, 164223, 275247, 310199, 383187, 930597, 1149561, 2171393, 2791791, 6514179, 19542537]

約数ペア:

[(1, 19542537), (3, 6514179), (7, 2791791), (9, 2171393), (17, 1149561), (21, 930597), (51, 383187), (63, 310199), (71, 275247), (119, 164223), (153, 127729), (213, 91749), (257, 76041), (357, 54741), (497, 39321), (639, 30583), (771, 25347), (1071, 18247), (1207, 16191), (1491, 13107), (1799, 10863), (2313, 8449), (3621, 5397), (4369, 4473)]