21089040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12553}}^1$

素因数の和:12576

約数の個数: 80

約数和(自身を含む): 74721408

約数和(自身を除く): 53632368

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12553, 25106, 37659, 50212, 62765, 75318, 87871, 100424, 125530, 150636, 175742, 188295, 200848, 251060, 263613, 301272, 351484, 376590, 439355, 502120, 527226, 602544, 702968, 753180, 878710, 1004240, 1054452, 1318065, 1405936, 1506360, 1757420, 2108904, 2636130, 3012720, 3514840, 4217808, 5272260, 7029680, 10544520, 21089040]

約数ペア:

[(1, 21089040), (2, 10544520), (3, 7029680), (4, 5272260), (5, 4217808), (6, 3514840), (7, 3012720), (8, 2636130), (10, 2108904), (12, 1757420), (14, 1506360), (15, 1405936), (16, 1318065), (20, 1054452), (21, 1004240), (24, 878710), (28, 753180), (30, 702968), (35, 602544), (40, 527226), (42, 502120), (48, 439355), (56, 376590), (60, 351484), (70, 301272), (80, 263613), (84, 251060), (105, 200848), (112, 188295), (120, 175742), (140, 150636), (168, 125530), (210, 100424), (240, 87871), (280, 75318), (336, 62765), (420, 50212), (560, 37659), (840, 25106), (1680, 12553)]