21396720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89153}}^1$

素因数の和:89169

約数の個数: 40

約数和(自身を含む): 66330576

約数和(自身を除く): 44933856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89153, 178306, 267459, 356612, 445765, 534918, 713224, 891530, 1069836, 1337295, 1426448, 1783060, 2139672, 2674590, 3566120, 4279344, 5349180, 7132240, 10698360, 21396720]

約数ペア:

[(1, 21396720), (2, 10698360), (3, 7132240), (4, 5349180), (5, 4279344), (6, 3566120), (8, 2674590), (10, 2139672), (12, 1783060), (15, 1426448), (16, 1337295), (20, 1069836), (24, 891530), (30, 713224), (40, 534918), (48, 445765), (60, 356612), (80, 267459), (120, 178306), (240, 89153)]