20812008

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1697}}^1$

素因数の和:1786

約数の個数: 64

約数和(自身を含む): 60312960

約数和(自身を除く): 39500952

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 73, 84, 146, 168, 219, 292, 438, 511, 584, 876, 1022, 1533, 1697, 1752, 2044, 3066, 3394, 4088, 5091, 6132, 6788, 10182, 11879, 12264, 13576, 20364, 23758, 35637, 40728, 47516, 71274, 95032, 123881, 142548, 247762, 285096, 371643, 495524, 743286, 867167, 991048, 1486572, 1734334, 2601501, 2973144, 3468668, 5203002, 6937336, 10406004, 20812008]

約数ペア:

[(1, 20812008), (2, 10406004), (3, 6937336), (4, 5203002), (6, 3468668), (7, 2973144), (8, 2601501), (12, 1734334), (14, 1486572), (21, 991048), (24, 867167), (28, 743286), (42, 495524), (56, 371643), (73, 285096), (84, 247762), (146, 142548), (168, 123881), (219, 95032), (292, 71274), (438, 47516), (511, 40728), (584, 35637), (876, 23758), (1022, 20364), (1533, 13576), (1697, 12264), (1752, 11879), (2044, 10182), (3066, 6788), (3394, 6132), (4088, 5091)]