21069230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{137}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 47295360

約数和(自身を除く): 26226130

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 137, 169, 182, 274, 338, 455, 685, 845, 910, 959, 1183, 1370, 1690, 1781, 1918, 2197, 2366, 3562, 4394, 4795, 5915, 8905, 9590, 10985, 11830, 12467, 15379, 17810, 21970, 23153, 24934, 30758, 46306, 62335, 76895, 115765, 124670, 153790, 162071, 231530, 300989, 324142, 601978, 810355, 1504945, 1620710, 2106923, 3009890, 4213846, 10534615, 21069230]

約数ペア:

[(1, 21069230), (2, 10534615), (5, 4213846), (7, 3009890), (10, 2106923), (13, 1620710), (14, 1504945), (26, 810355), (35, 601978), (65, 324142), (70, 300989), (91, 231530), (130, 162071), (137, 153790), (169, 124670), (182, 115765), (274, 76895), (338, 62335), (455, 46306), (685, 30758), (845, 24934), (910, 23153), (959, 21970), (1183, 17810), (1370, 15379), (1690, 12467), (1781, 11830), (1918, 10985), (2197, 9590), (2366, 8905), (3562, 5915), (4394, 4795)]