21097935

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 41212800

約数和(自身を除く): 20114865

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 85, 87, 135, 145, 153, 255, 261, 317, 435, 459, 493, 765, 783, 951, 1305, 1479, 1585, 2295, 2465, 2853, 3915, 4437, 4755, 5389, 7395, 8559, 9193, 13311, 14265, 16167, 22185, 26945, 27579, 42795, 45965, 48501, 66555, 80835, 82737, 137895, 145503, 156281, 242505, 248211, 413685, 468843, 727515, 781405, 1241055, 1406529, 2344215, 4219587, 7032645, 21097935]

約数ペア:

[(1, 21097935), (3, 7032645), (5, 4219587), (9, 2344215), (15, 1406529), (17, 1241055), (27, 781405), (29, 727515), (45, 468843), (51, 413685), (85, 248211), (87, 242505), (135, 156281), (145, 145503), (153, 137895), (255, 82737), (261, 80835), (317, 66555), (435, 48501), (459, 45965), (493, 42795), (765, 27579), (783, 26945), (951, 22185), (1305, 16167), (1479, 14265), (1585, 13311), (2295, 9193), (2465, 8559), (2853, 7395), (3915, 5389), (4437, 4755)]