21053040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87721}}^1$

素因数の和:87737

約数の個数: 40

約数和(自身を含む): 65265168

約数和(自身を除く): 44212128

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87721, 175442, 263163, 350884, 438605, 526326, 701768, 877210, 1052652, 1315815, 1403536, 1754420, 2105304, 2631630, 3508840, 4210608, 5263260, 7017680, 10526520, 21053040]

約数ペア:

[(1, 21053040), (2, 10526520), (3, 7017680), (4, 5263260), (5, 4210608), (6, 3508840), (8, 2631630), (10, 2105304), (12, 1754420), (15, 1403536), (16, 1315815), (20, 1052652), (24, 877210), (30, 701768), (40, 526326), (48, 438605), (60, 350884), (80, 263163), (120, 175442), (240, 87721)]