21725880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 72230400

約数和(自身を除く): 50504520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 109, 110, 120, 132, 151, 165, 218, 220, 264, 302, 327, 330, 436, 440, 453, 545, 604, 654, 660, 755, 872, 906, 1090, 1199, 1208, 1308, 1320, 1510, 1635, 1661, 1812, 2180, 2265, 2398, 2616, 3020, 3270, 3322, 3597, 3624, 4360, 4530, 4796, 4983, 5995, 6040, 6540, 6644, 7194, 8305, 9060, 9592, 9966, 11990, 13080, 13288, 14388, 16459, 16610, 17985, 18120, 19932, 23980, 24915, 28776, 32918, 33220, 35970, 39864, 47960, 49377, 49830, 65836, 66440, 71940, 82295, 98754, 99660, 131672, 143880, 164590, 181049, 197508, 199320, 246885, 329180, 362098, 395016, 493770, 543147, 658360, 724196, 905245, 987540, 1086294, 1448392, 1810490, 1975080, 2172588, 2715735, 3620980, 4345176, 5431470, 7241960, 10862940, 21725880]

約数ペア:

[(1, 21725880), (2, 10862940), (3, 7241960), (4, 5431470), (5, 4345176), (6, 3620980), (8, 2715735), (10, 2172588), (11, 1975080), (12, 1810490), (15, 1448392), (20, 1086294), (22, 987540), (24, 905245), (30, 724196), (33, 658360), (40, 543147), (44, 493770), (55, 395016), (60, 362098), (66, 329180), (88, 246885), (109, 199320), (110, 197508), (120, 181049), (132, 164590), (151, 143880), (165, 131672), (218, 99660), (220, 98754), (264, 82295), (302, 71940), (327, 66440), (330, 65836), (436, 49830), (440, 49377), (453, 47960), (545, 39864), (604, 35970), (654, 33220), (660, 32918), (755, 28776), (872, 24915), (906, 23980), (1090, 19932), (1199, 18120), (1208, 17985), (1308, 16610), (1320, 16459), (1510, 14388), (1635, 13288), (1661, 13080), (1812, 11990), (2180, 9966), (2265, 9592), (2398, 9060), (2616, 8305), (3020, 7194), (3270, 6644), (3322, 6540), (3597, 6040), (3624, 5995), (4360, 4983), (4530, 4796)]