21110004

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2753}}^1$

素因数の和:2837

約数の個数: 48

約数和(自身を含む): 55520640

約数和(自身を除く): 34410636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2753, 3834, 5506, 7668, 8259, 11012, 16518, 24777, 33036, 49554, 74331, 99108, 148662, 195463, 297324, 390926, 586389, 781852, 1172778, 1759167, 2345556, 3518334, 5277501, 7036668, 10555002, 21110004]

約数ペア:

[(1, 21110004), (2, 10555002), (3, 7036668), (4, 5277501), (6, 3518334), (9, 2345556), (12, 1759167), (18, 1172778), (27, 781852), (36, 586389), (54, 390926), (71, 297324), (108, 195463), (142, 148662), (213, 99108), (284, 74331), (426, 49554), (639, 33036), (852, 24777), (1278, 16518), (1917, 11012), (2556, 8259), (2753, 7668), (3834, 5506)]