28179018

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{743}}^1$

素因数の和:808

約数の個数: 72

約数和(自身を含む): 72772128

約数和(自身を除く): 44593110

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 49, 63, 86, 98, 126, 129, 147, 258, 294, 301, 387, 441, 602, 743, 774, 882, 903, 1486, 1806, 2107, 2229, 2709, 4214, 4458, 5201, 5418, 6321, 6687, 10402, 12642, 13374, 15603, 18963, 31206, 31949, 36407, 37926, 46809, 63898, 72814, 93618, 95847, 109221, 191694, 218442, 223643, 287541, 327663, 447286, 575082, 655326, 670929, 1341858, 1565501, 2012787, 3131002, 4025574, 4696503, 9393006, 14089509, 28179018]

約数ペア:

[(1, 28179018), (2, 14089509), (3, 9393006), (6, 4696503), (7, 4025574), (9, 3131002), (14, 2012787), (18, 1565501), (21, 1341858), (42, 670929), (43, 655326), (49, 575082), (63, 447286), (86, 327663), (98, 287541), (126, 223643), (129, 218442), (147, 191694), (258, 109221), (294, 95847), (301, 93618), (387, 72814), (441, 63898), (602, 46809), (743, 37926), (774, 36407), (882, 31949), (903, 31206), (1486, 18963), (1806, 15603), (2107, 13374), (2229, 12642), (2709, 10402), (4214, 6687), (4458, 6321), (5201, 5418)]