16663995

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 32192640

約数和(自身を除く): 15528645

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 53, 85, 135, 137, 153, 159, 255, 265, 411, 459, 477, 685, 765, 795, 901, 1233, 1431, 2055, 2295, 2329, 2385, 2703, 3699, 4505, 6165, 6987, 7155, 7261, 8109, 11645, 13515, 18495, 20961, 21783, 24327, 34935, 36305, 40545, 62883, 65349, 104805, 108915, 121635, 123437, 196047, 314415, 326745, 370311, 617185, 980235, 1110933, 1851555, 3332799, 5554665, 16663995]

約数ペア:

[(1, 16663995), (3, 5554665), (5, 3332799), (9, 1851555), (15, 1110933), (17, 980235), (27, 617185), (45, 370311), (51, 326745), (53, 314415), (85, 196047), (135, 123437), (137, 121635), (153, 108915), (159, 104805), (255, 65349), (265, 62883), (411, 40545), (459, 36305), (477, 34935), (685, 24327), (765, 21783), (795, 20961), (901, 18495), (1233, 13515), (1431, 11645), (2055, 8109), (2295, 7261), (2329, 7155), (2385, 6987), (2703, 6165), (3699, 4505)]