21661260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 64108800

約数和(自身を除く): 42447540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 59, 60, 87, 116, 118, 145, 174, 177, 211, 236, 290, 295, 348, 354, 422, 435, 580, 590, 633, 708, 844, 870, 885, 1055, 1180, 1266, 1711, 1740, 1770, 2110, 2532, 3165, 3422, 3540, 4220, 5133, 6119, 6330, 6844, 8555, 10266, 12238, 12449, 12660, 17110, 18357, 20532, 24476, 24898, 25665, 30595, 34220, 36714, 37347, 49796, 51330, 61190, 62245, 73428, 74694, 91785, 102660, 122380, 124490, 149388, 183570, 186735, 248980, 361021, 367140, 373470, 722042, 746940, 1083063, 1444084, 1805105, 2166126, 3610210, 4332252, 5415315, 7220420, 10830630, 21661260]

約数ペア:

[(1, 21661260), (2, 10830630), (3, 7220420), (4, 5415315), (5, 4332252), (6, 3610210), (10, 2166126), (12, 1805105), (15, 1444084), (20, 1083063), (29, 746940), (30, 722042), (58, 373470), (59, 367140), (60, 361021), (87, 248980), (116, 186735), (118, 183570), (145, 149388), (174, 124490), (177, 122380), (211, 102660), (236, 91785), (290, 74694), (295, 73428), (348, 62245), (354, 61190), (422, 51330), (435, 49796), (580, 37347), (590, 36714), (633, 34220), (708, 30595), (844, 25665), (870, 24898), (885, 24476), (1055, 20532), (1180, 18357), (1266, 17110), (1711, 12660), (1740, 12449), (1770, 12238), (2110, 10266), (2532, 8555), (3165, 6844), (3422, 6330), (3540, 6119), (4220, 5133)]