21054480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2371}}^1$

素因数の和:2424

約数の個数: 80

約数和(自身を含む): 67061184

約数和(自身を除く): 46006704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2371, 2960, 4440, 4742, 7113, 8880, 9484, 11855, 14226, 18968, 23710, 28452, 35565, 37936, 47420, 56904, 71130, 87727, 94840, 113808, 142260, 175454, 189680, 263181, 284520, 350908, 438635, 526362, 569040, 701816, 877270, 1052724, 1315905, 1403632, 1754540, 2105448, 2631810, 3509080, 4210896, 5263620, 7018160, 10527240, 21054480]

約数ペア:

[(1, 21054480), (2, 10527240), (3, 7018160), (4, 5263620), (5, 4210896), (6, 3509080), (8, 2631810), (10, 2105448), (12, 1754540), (15, 1403632), (16, 1315905), (20, 1052724), (24, 877270), (30, 701816), (37, 569040), (40, 526362), (48, 438635), (60, 350908), (74, 284520), (80, 263181), (111, 189680), (120, 175454), (148, 142260), (185, 113808), (222, 94840), (240, 87727), (296, 71130), (370, 56904), (444, 47420), (555, 37936), (592, 35565), (740, 28452), (888, 23710), (1110, 18968), (1480, 14226), (1776, 11855), (2220, 9484), (2371, 8880), (2960, 7113), (4440, 4742)]