19863225

素因数分解:

$3^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{577}}^1$

素因数の和:616

約数の個数: 60

約数和(自身を含む): 39025404

約数和(自身を除く): 19162179

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 255, 405, 425, 459, 577, 675, 765, 1275, 1377, 1731, 2025, 2295, 2885, 3825, 5193, 6885, 8655, 9809, 11475, 14425, 15579, 25965, 29427, 34425, 43275, 46737, 49045, 77895, 88281, 129825, 147135, 233685, 245225, 264843, 389475, 441405, 735675, 794529, 1168425, 1324215, 2207025, 3972645, 6621075, 19863225]

約数ペア:

[(1, 19863225), (3, 6621075), (5, 3972645), (9, 2207025), (15, 1324215), (17, 1168425), (25, 794529), (27, 735675), (45, 441405), (51, 389475), (75, 264843), (81, 245225), (85, 233685), (135, 147135), (153, 129825), (225, 88281), (255, 77895), (405, 49045), (425, 46737), (459, 43275), (577, 34425), (675, 29427), (765, 25965), (1275, 15579), (1377, 14425), (1731, 11475), (2025, 9809), (2295, 8655), (2885, 6885), (3825, 5193)]