21537720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2063}}^1$

素因数の和:2109

約数の個数: 96

約数和(自身を含む): 72446400

約数和(自身を除く): 50908680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 72, 87, 90, 116, 120, 145, 174, 180, 232, 261, 290, 348, 360, 435, 522, 580, 696, 870, 1044, 1160, 1305, 1740, 2063, 2088, 2610, 3480, 4126, 5220, 6189, 8252, 10315, 10440, 12378, 16504, 18567, 20630, 24756, 30945, 37134, 41260, 49512, 59827, 61890, 74268, 82520, 92835, 119654, 123780, 148536, 179481, 185670, 239308, 247560, 299135, 358962, 371340, 478616, 538443, 598270, 717924, 742680, 897405, 1076886, 1196540, 1435848, 1794810, 2153772, 2393080, 2692215, 3589620, 4307544, 5384430, 7179240, 10768860, 21537720]

約数ペア:

[(1, 21537720), (2, 10768860), (3, 7179240), (4, 5384430), (5, 4307544), (6, 3589620), (8, 2692215), (9, 2393080), (10, 2153772), (12, 1794810), (15, 1435848), (18, 1196540), (20, 1076886), (24, 897405), (29, 742680), (30, 717924), (36, 598270), (40, 538443), (45, 478616), (58, 371340), (60, 358962), (72, 299135), (87, 247560), (90, 239308), (116, 185670), (120, 179481), (145, 148536), (174, 123780), (180, 119654), (232, 92835), (261, 82520), (290, 74268), (348, 61890), (360, 59827), (435, 49512), (522, 41260), (580, 37134), (696, 30945), (870, 24756), (1044, 20630), (1160, 18567), (1305, 16504), (1740, 12378), (2063, 10440), (2088, 10315), (2610, 8252), (3480, 6189), (4126, 5220)]