21055560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{175463}}^1$

素因数の和:175477

約数の個数: 32

約数和(自身を含む): 63167040

約数和(自身を除く): 42111480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 175463, 350926, 526389, 701852, 877315, 1052778, 1403704, 1754630, 2105556, 2631945, 3509260, 4211112, 5263890, 7018520, 10527780, 21055560]

約数ペア:

[(1, 21055560), (2, 10527780), (3, 7018520), (4, 5263890), (5, 4211112), (6, 3509260), (8, 2631945), (10, 2105556), (12, 1754630), (15, 1403704), (20, 1052778), (24, 877315), (30, 701852), (40, 526389), (60, 350926), (120, 175463)]