19339965

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2$

素因数の和:140

約数の個数: 60

約数和(自身を含む): 37413684

約数和(自身を除く): 18073719

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 53, 81, 85, 135, 153, 159, 255, 265, 405, 459, 477, 765, 795, 901, 1377, 1431, 2295, 2385, 2703, 2809, 4293, 4505, 6885, 7155, 8109, 8427, 13515, 14045, 21465, 24327, 25281, 40545, 42135, 47753, 72981, 75843, 121635, 126405, 143259, 227529, 238765, 364905, 379215, 429777, 716295, 1137645, 1289331, 2148885, 3867993, 6446655, 19339965]

約数ペア:

[(1, 19339965), (3, 6446655), (5, 3867993), (9, 2148885), (15, 1289331), (17, 1137645), (27, 716295), (45, 429777), (51, 379215), (53, 364905), (81, 238765), (85, 227529), (135, 143259), (153, 126405), (159, 121635), (255, 75843), (265, 72981), (405, 47753), (459, 42135), (477, 40545), (765, 25281), (795, 24327), (901, 21465), (1377, 14045), (1431, 13515), (2295, 8427), (2385, 8109), (2703, 7155), (2809, 6885), (4293, 4505)]