19395045

素因数分解:

$3^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:353

約数の個数: 56

約数和(自身を含む): 37065816

約数和(自身を除く): 17670771

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 313, 405, 459, 729, 765, 939, 1215, 1377, 1565, 2295, 2817, 3645, 4131, 4695, 5321, 6885, 8451, 12393, 14085, 15963, 20655, 25353, 26605, 42255, 47889, 61965, 76059, 79815, 126765, 143667, 228177, 239445, 380295, 431001, 718335, 1140885, 1293003, 2155005, 3879009, 6465015, 19395045]

約数ペア:

[(1, 19395045), (3, 6465015), (5, 3879009), (9, 2155005), (15, 1293003), (17, 1140885), (27, 718335), (45, 431001), (51, 380295), (81, 239445), (85, 228177), (135, 143667), (153, 126765), (243, 79815), (255, 76059), (313, 61965), (405, 47889), (459, 42255), (729, 26605), (765, 25353), (939, 20655), (1215, 15963), (1377, 14085), (1565, 12393), (2295, 8451), (2817, 6885), (3645, 5321), (4131, 4695)]