21611100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:316

約数の個数: 144

約数和(自身を含む): 73495296

約数和(自身を除く): 51884196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 41, 42, 50, 60, 70, 75, 82, 84, 100, 105, 123, 140, 150, 164, 175, 205, 210, 246, 251, 287, 300, 350, 410, 420, 492, 502, 525, 574, 615, 700, 753, 820, 861, 1004, 1025, 1050, 1148, 1230, 1255, 1435, 1506, 1722, 1757, 2050, 2100, 2460, 2510, 2870, 3012, 3075, 3444, 3514, 3765, 4100, 4305, 5020, 5271, 5740, 6150, 6275, 7028, 7175, 7530, 8610, 8785, 10291, 10542, 12300, 12550, 14350, 15060, 17220, 17570, 18825, 20582, 21084, 21525, 25100, 26355, 28700, 30873, 35140, 37650, 41164, 43050, 43925, 51455, 52710, 61746, 72037, 75300, 86100, 87850, 102910, 105420, 123492, 131775, 144074, 154365, 175700, 205820, 216111, 257275, 263550, 288148, 308730, 360185, 432222, 514550, 527100, 617460, 720370, 771825, 864444, 1029100, 1080555, 1440740, 1543650, 1800925, 2161110, 3087300, 3601850, 4322220, 5402775, 7203700, 10805550, 21611100]

約数ペア:

[(1, 21611100), (2, 10805550), (3, 7203700), (4, 5402775), (5, 4322220), (6, 3601850), (7, 3087300), (10, 2161110), (12, 1800925), (14, 1543650), (15, 1440740), (20, 1080555), (21, 1029100), (25, 864444), (28, 771825), (30, 720370), (35, 617460), (41, 527100), (42, 514550), (50, 432222), (60, 360185), (70, 308730), (75, 288148), (82, 263550), (84, 257275), (100, 216111), (105, 205820), (123, 175700), (140, 154365), (150, 144074), (164, 131775), (175, 123492), (205, 105420), (210, 102910), (246, 87850), (251, 86100), (287, 75300), (300, 72037), (350, 61746), (410, 52710), (420, 51455), (492, 43925), (502, 43050), (525, 41164), (574, 37650), (615, 35140), (700, 30873), (753, 28700), (820, 26355), (861, 25100), (1004, 21525), (1025, 21084), (1050, 20582), (1148, 18825), (1230, 17570), (1255, 17220), (1435, 15060), (1506, 14350), (1722, 12550), (1757, 12300), (2050, 10542), (2100, 10291), (2460, 8785), (2510, 8610), (2870, 7530), (3012, 7175), (3075, 7028), (3444, 6275), (3514, 6150), (3765, 5740), (4100, 5271), (4305, 5020)]