17640648

素因数分解:

$2^3\times 3^2\times {\mathrm{491}}^1\times {\mathrm{499}}^1$

素因数の和:1002

約数の個数: 48

約数和(自身を含む): 47970000

約数和(自身を除く): 30329352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 491, 499, 982, 998, 1473, 1497, 1964, 1996, 2946, 2994, 3928, 3992, 4419, 4491, 5892, 5988, 8838, 8982, 11784, 11976, 17676, 17964, 35352, 35928, 245009, 490018, 735027, 980036, 1470054, 1960072, 2205081, 2940108, 4410162, 5880216, 8820324, 17640648]

約数ペア:

[(1, 17640648), (2, 8820324), (3, 5880216), (4, 4410162), (6, 2940108), (8, 2205081), (9, 1960072), (12, 1470054), (18, 980036), (24, 735027), (36, 490018), (72, 245009), (491, 35928), (499, 35352), (982, 17964), (998, 17676), (1473, 11976), (1497, 11784), (1964, 8982), (1996, 8838), (2946, 5988), (2994, 5892), (3928, 4491), (3992, 4419)]