18835065

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 36806400

約数和(自身を除く): 17971335

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 85, 87, 135, 145, 153, 255, 261, 283, 435, 459, 493, 765, 783, 849, 1305, 1415, 1479, 2295, 2465, 2547, 3915, 4245, 4437, 4811, 7395, 7641, 8207, 12735, 13311, 14433, 22185, 24055, 24621, 38205, 41035, 43299, 66555, 72165, 73863, 123105, 129897, 139519, 216495, 221589, 369315, 418557, 649485, 697595, 1107945, 1255671, 2092785, 3767013, 6278355, 18835065]

約数ペア:

[(1, 18835065), (3, 6278355), (5, 3767013), (9, 2092785), (15, 1255671), (17, 1107945), (27, 697595), (29, 649485), (45, 418557), (51, 369315), (85, 221589), (87, 216495), (135, 139519), (145, 129897), (153, 123105), (255, 73863), (261, 72165), (283, 66555), (435, 43299), (459, 41035), (493, 38205), (765, 24621), (783, 24055), (849, 22185), (1305, 14433), (1415, 13311), (1479, 12735), (2295, 8207), (2465, 7641), (2547, 7395), (3915, 4811), (4245, 4437)]