20813004

素因数分解:

$2^2\times 3^3\times {\mathrm{103}}^1\times {\mathrm{1871}}^1$

素因数の和:1987

約数の個数: 48

約数和(自身を含む): 54512640

約数和(自身を除く): 33699636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 103, 108, 206, 309, 412, 618, 927, 1236, 1854, 1871, 2781, 3708, 3742, 5562, 5613, 7484, 11124, 11226, 16839, 22452, 33678, 50517, 67356, 101034, 192713, 202068, 385426, 578139, 770852, 1156278, 1734417, 2312556, 3468834, 5203251, 6937668, 10406502, 20813004]

約数ペア:

[(1, 20813004), (2, 10406502), (3, 6937668), (4, 5203251), (6, 3468834), (9, 2312556), (12, 1734417), (18, 1156278), (27, 770852), (36, 578139), (54, 385426), (103, 202068), (108, 192713), (206, 101034), (309, 67356), (412, 50517), (618, 33678), (927, 22452), (1236, 16839), (1854, 11226), (1871, 11124), (2781, 7484), (3708, 5613), (3742, 5562)]