21845040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13003}}^1$

素因数の和:13026

約数の個数: 80

約数和(自身を含む): 77399808

約数和(自身を除く): 55554768

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, 13003, 26006, 39009, 52012, 65015, 78018, 91021, 104024, 130030, 156036, 182042, 195045, 208048, 260060, 273063, 312072, 364084, 390090, 455105, 520120, 546126, 624144, 728168, 780180, 910210, 1040240, 1092252, 1365315, 1456336, 1560360, 1820420, 2184504, 2730630, 3120720, 3640840, 4369008, 5461260, 7281680, 10922520, 21845040]

約数ペア:

[(1, 21845040), (2, 10922520), (3, 7281680), (4, 5461260), (5, 4369008), (6, 3640840), (7, 3120720), (8, 2730630), (10, 2184504), (12, 1820420), (14, 1560360), (15, 1456336), (16, 1365315), (20, 1092252), (21, 1040240), (24, 910210), (28, 780180), (30, 728168), (35, 624144), (40, 546126), (42, 520120), (48, 455105), (56, 390090), (60, 364084), (70, 312072), (80, 273063), (84, 260060), (105, 208048), (112, 195045), (120, 182042), (140, 156036), (168, 130030), (210, 104024), (240, 91021), (280, 78018), (336, 65015), (420, 52012), (560, 39009), (840, 26006), (1680, 13003)]