21751740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{463}}^1$

素因数の和:513

約数の個数: 120

約数和(自身を含む): 70741440

約数和(自身を除く): 48989700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 81, 87, 90, 108, 116, 135, 145, 162, 174, 180, 261, 270, 290, 324, 348, 405, 435, 463, 522, 540, 580, 783, 810, 870, 926, 1044, 1305, 1389, 1566, 1620, 1740, 1852, 2315, 2349, 2610, 2778, 3132, 3915, 4167, 4630, 4698, 5220, 5556, 6945, 7830, 8334, 9260, 9396, 11745, 12501, 13427, 13890, 15660, 16668, 20835, 23490, 25002, 26854, 27780, 37503, 40281, 41670, 46980, 50004, 53708, 62505, 67135, 75006, 80562, 83340, 120843, 125010, 134270, 150012, 161124, 187515, 201405, 241686, 250020, 268540, 362529, 375030, 402810, 483372, 604215, 725058, 750060, 805620, 1087587, 1208430, 1450116, 1812645, 2175174, 2416860, 3625290, 4350348, 5437935, 7250580, 10875870, 21751740]

約数ペア:

[(1, 21751740), (2, 10875870), (3, 7250580), (4, 5437935), (5, 4350348), (6, 3625290), (9, 2416860), (10, 2175174), (12, 1812645), (15, 1450116), (18, 1208430), (20, 1087587), (27, 805620), (29, 750060), (30, 725058), (36, 604215), (45, 483372), (54, 402810), (58, 375030), (60, 362529), (81, 268540), (87, 250020), (90, 241686), (108, 201405), (116, 187515), (135, 161124), (145, 150012), (162, 134270), (174, 125010), (180, 120843), (261, 83340), (270, 80562), (290, 75006), (324, 67135), (348, 62505), (405, 53708), (435, 50004), (463, 46980), (522, 41670), (540, 40281), (580, 37503), (783, 27780), (810, 26854), (870, 25002), (926, 23490), (1044, 20835), (1305, 16668), (1389, 15660), (1566, 13890), (1620, 13427), (1740, 12501), (1852, 11745), (2315, 9396), (2349, 9260), (2610, 8334), (2778, 7830), (3132, 6945), (3915, 5556), (4167, 5220), (4630, 4698)]